mirror of https://github.com/citusdata/citus.git
3303 lines
183 KiB
Plaintext
3303 lines
183 KiB
Plaintext
--
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-- LOCAL_SHARD_EXECUTION
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--
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-- This test file has an alternative output because of the change in the
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-- display of SQL-standard function's arguments in INSERT/SELECT in PG15.
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-- The alternative output can be deleted when we drop support for PG14
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--
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SHOW server_version \gset
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SELECT substring(:'server_version', '\d+')::int >= 15 AS server_version_ge_15;
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server_version_ge_15
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---------------------------------------------------------------------
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f
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(1 row)
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CREATE SCHEMA local_shard_execution;
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SET search_path TO local_shard_execution;
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SET citus.shard_count TO 4;
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SET citus.shard_replication_factor TO 1;
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SET citus.next_shard_id TO 1470000;
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CREATE TABLE reference_table (key int PRIMARY KEY);
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SELECT create_reference_table('reference_table');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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CREATE TABLE distributed_table (key int PRIMARY KEY , value text, age bigint CHECK (age > 10), FOREIGN KEY (key) REFERENCES reference_table(key) ON DELETE CASCADE);
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SELECT create_distributed_table('distributed_table','key');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE TABLE second_distributed_table (key int PRIMARY KEY , value text, FOREIGN KEY (key) REFERENCES distributed_table(key) ON DELETE CASCADE);
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SELECT create_distributed_table('second_distributed_table','key');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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-- ingest some data to enable some tests with data
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INSERT INTO reference_table VALUES (1);
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INSERT INTO distributed_table VALUES (1, '1', 20);
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INSERT INTO second_distributed_table VALUES (1, '1');
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-- a simple test for
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CREATE TABLE collections_list (
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key bigserial,
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ser bigserial,
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ts timestamptz,
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collection_id integer,
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value numeric,
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PRIMARY KEY(key, collection_id)
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) PARTITION BY LIST (collection_id );
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SELECT create_distributed_table('collections_list', 'key');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE TABLE collections_list_0
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PARTITION OF collections_list (key, ser, ts, collection_id, value)
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FOR VALUES IN ( 0 );
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-- create a volatile function that returns the local node id
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CREATE OR REPLACE FUNCTION get_local_node_id_volatile()
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RETURNS INT AS $$
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DECLARE localGroupId int;
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BEGIN
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SELECT groupid INTO localGroupId FROM pg_dist_local_group;
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RETURN localGroupId;
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END; $$ language plpgsql VOLATILE;
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SELECT create_distributed_function('get_local_node_id_volatile()');
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NOTICE: procedure local_shard_execution.get_local_node_id_volatile is already distributed
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DETAIL: Citus distributes procedures with CREATE [PROCEDURE|FUNCTION|AGGREGATE] commands
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create_distributed_function
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---------------------------------------------------------------------
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(1 row)
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-- test case for issue #3556
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CREATE TABLE accounts (id text PRIMARY KEY);
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CREATE TABLE stats (account_id text PRIMARY KEY, spent int);
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SELECT create_distributed_table('accounts', 'id', colocate_with => 'none');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT create_distributed_table('stats', 'account_id', colocate_with => 'accounts');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO accounts (id) VALUES ('foo');
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INSERT INTO stats (account_id, spent) VALUES ('foo', 100);
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CREATE TABLE abcd(a int, b int, c int, d int);
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SELECT create_distributed_table('abcd', 'b');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO abcd VALUES (1,2,3,4);
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INSERT INTO abcd VALUES (2,3,4,5);
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INSERT INTO abcd VALUES (3,4,5,6);
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ALTER TABLE abcd DROP COLUMN a;
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-- connection worker and get ready for the tests
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\c - - - :worker_1_port
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SET search_path TO local_shard_execution;
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SET citus.enable_unique_job_ids TO off;
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-- returns true of the distribution key filter
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-- on the distributed tables (e.g., WHERE key = 1), we'll hit a shard
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-- placement which is local to this not
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SET citus.enable_metadata_sync TO OFF;
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CREATE OR REPLACE FUNCTION shard_of_distribution_column_is_local(dist_key int) RETURNS bool AS $$
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DECLARE shard_is_local BOOLEAN := FALSE;
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BEGIN
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WITH local_shard_ids AS (SELECT get_shard_id_for_distribution_column('local_shard_execution.distributed_table', dist_key)),
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all_local_shard_ids_on_node AS (SELECT shardid FROM pg_dist_placement WHERE groupid IN (SELECT groupid FROM pg_dist_local_group))
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SELECT
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true INTO shard_is_local
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FROM
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local_shard_ids
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WHERE
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get_shard_id_for_distribution_column IN (SELECT * FROM all_local_shard_ids_on_node);
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IF shard_is_local IS NULL THEN
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shard_is_local = FALSE;
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END IF;
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RETURN shard_is_local;
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END;
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$$ LANGUAGE plpgsql;
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RESET citus.enable_metadata_sync;
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-- test case for issue #3556
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SET citus.log_intermediate_results TO TRUE;
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SET client_min_messages TO DEBUG1;
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SELECT *
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FROM
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(
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WITH accounts_cte AS (
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SELECT id AS account_id
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FROM accounts
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),
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joined_stats_cte_1 AS (
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SELECT spent, account_id
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FROM stats
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INNER JOIN accounts_cte USING (account_id)
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),
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joined_stats_cte_2 AS (
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SELECT spent, account_id
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FROM joined_stats_cte_1
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INNER JOIN accounts_cte USING (account_id)
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)
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SELECT SUM(spent) OVER (PARTITION BY coalesce(account_id, NULL))
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FROM accounts_cte
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INNER JOIN joined_stats_cte_2 USING (account_id)
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) inner_query;
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DEBUG: CTE joined_stats_cte_1 is going to be inlined via distributed planning
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DEBUG: CTE joined_stats_cte_2 is going to be inlined via distributed planning
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DEBUG: generating subplan XXX_1 for CTE accounts_cte: SELECT id AS account_id FROM local_shard_execution.accounts
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DEBUG: generating subplan XXX_2 for subquery SELECT sum(joined_stats_cte_2.spent) OVER (PARTITION BY COALESCE(accounts_cte.account_id, NULL::text)) AS sum FROM ((SELECT intermediate_result.account_id FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(account_id text)) accounts_cte JOIN (SELECT joined_stats_cte_1.spent, joined_stats_cte_1.account_id FROM ((SELECT stats.spent, stats.account_id FROM (local_shard_execution.stats JOIN (SELECT intermediate_result.account_id FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(account_id text)) accounts_cte_2 USING (account_id))) joined_stats_cte_1 JOIN (SELECT intermediate_result.account_id FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(account_id text)) accounts_cte_1 USING (account_id))) joined_stats_cte_2 USING (account_id))
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DEBUG: Plan XXX query after replacing subqueries and CTEs: SELECT sum FROM (SELECT intermediate_result.sum FROM read_intermediate_result('XXX_2'::text, 'binary'::citus_copy_format) intermediate_result(sum bigint)) inner_query
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DEBUG: Subplan XXX_1 will be sent to localhost:xxxxx
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DEBUG: Subplan XXX_1 will be sent to localhost:xxxxx
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DEBUG: Subplan XXX_2 will be written to local file
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sum
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---------------------------------------------------------------------
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100
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(1 row)
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SET citus.log_intermediate_results TO DEFAULT;
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SET client_min_messages TO DEFAULT;
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-- pick some example values that reside on the shards locally and remote
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-- distribution key values of 1,6, 500 and 701 are LOCAL to shards,
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-- we'll use these values in the tests
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SELECT shard_of_distribution_column_is_local(1);
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shard_of_distribution_column_is_local
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---------------------------------------------------------------------
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t
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(1 row)
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SELECT shard_of_distribution_column_is_local(6);
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shard_of_distribution_column_is_local
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---------------------------------------------------------------------
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t
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(1 row)
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SELECT shard_of_distribution_column_is_local(500);
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shard_of_distribution_column_is_local
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---------------------------------------------------------------------
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t
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(1 row)
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SELECT shard_of_distribution_column_is_local(701);
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shard_of_distribution_column_is_local
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---------------------------------------------------------------------
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t
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(1 row)
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-- distribution key values of 11 and 12 are REMOTE to shards
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SELECT shard_of_distribution_column_is_local(11);
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shard_of_distribution_column_is_local
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---------------------------------------------------------------------
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f
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(1 row)
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SELECT shard_of_distribution_column_is_local(12);
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shard_of_distribution_column_is_local
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---------------------------------------------------------------------
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f
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(1 row)
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--- enable logging to see which tasks are executed locally
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SET citus.log_local_commands TO ON;
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-- first, make sure that local execution works fine
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-- with simple queries that are not in transcation blocks
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SELECT count(*) FROM distributed_table WHERE key = 1;
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NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
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count
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---------------------------------------------------------------------
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1
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(1 row)
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-- multiple tasks both of which are local should NOT use local execution
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-- because local execution means executing the tasks locally, so the executor
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-- favors parallel execution even if everyting is local to node
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SELECT count(*) FROM distributed_table WHERE key IN (1,6);
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count
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---------------------------------------------------------------------
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1
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(1 row)
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-- queries that hit any remote shards should NOT use local execution
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SELECT count(*) FROM distributed_table WHERE key IN (1,11);
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count
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---------------------------------------------------------------------
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1
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(1 row)
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SELECT count(*) FROM distributed_table;
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count
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---------------------------------------------------------------------
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1
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(1 row)
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-- modifications also follow the same rules
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INSERT INTO reference_table VALUES (1) ON CONFLICT DO NOTHING;
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NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 AS citus_table_alias (key) VALUES (1) ON CONFLICT DO NOTHING
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INSERT INTO distributed_table VALUES (1, '1', 21) ON CONFLICT DO NOTHING;
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NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '1'::text, 21) ON CONFLICT DO NOTHING
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-- local query
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DELETE FROM distributed_table WHERE key = 1 AND age = 21;
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NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((key OPERATOR(pg_catalog.=) 1) AND (age OPERATOR(pg_catalog.=) 21))
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-- hitting multiple shards, so should be a distributed execution
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DELETE FROM distributed_table WHERE age = 21;
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-- although both shards are local, the executor choose the parallel execution
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-- over the wire because as noted above local execution is sequential
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DELETE FROM second_distributed_table WHERE key IN (1,6);
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-- similarly, any multi-shard query just follows distributed execution
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DELETE FROM second_distributed_table;
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-- load some more data for the following tests
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INSERT INTO second_distributed_table VALUES (1, '1');
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NOTICE: executing the command locally: INSERT INTO local_shard_execution.second_distributed_table_1470005 (key, value) VALUES (1, '1'::text)
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-- INSERT .. SELECT hitting a single single (co-located) shard(s) should
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-- be executed locally
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INSERT INTO distributed_table
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SELECT
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distributed_table.*
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FROM
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distributed_table, second_distributed_table
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WHERE
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distributed_table.key = 1 and distributed_table.key=second_distributed_table.key
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ON CONFLICT(key) DO UPDATE SET value = '22'
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RETURNING *;
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NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) SELECT distributed_table.key, distributed_table.value, distributed_table.age FROM local_shard_execution.distributed_table_1470001 distributed_table, local_shard_execution.second_distributed_table_1470005 second_distributed_table WHERE (((distributed_table.key OPERATOR(pg_catalog.=) 1) AND (distributed_table.key OPERATOR(pg_catalog.=) second_distributed_table.key)) AND (distributed_table.key IS NOT NULL)) ON CONFLICT(key) DO UPDATE SET value = '22'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
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key | value | age
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---------------------------------------------------------------------
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1 | 22 | 20
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(1 row)
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-- INSERT .. SELECT hitting multi-shards should go thourgh distributed execution
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INSERT INTO distributed_table
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SELECT
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distributed_table.*
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FROM
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distributed_table, second_distributed_table
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WHERE
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distributed_table.key != 1 and distributed_table.key=second_distributed_table.key
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ON CONFLICT(key) DO UPDATE SET value = '22'
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RETURNING *;
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key | value | age
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---------------------------------------------------------------------
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(0 rows)
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-- INSERT..SELECT via coordinator consists of two steps, select + COPY
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-- that's why it is disallowed to use local execution even if the SELECT
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-- can be executed locally
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INSERT INTO distributed_table SELECT sum(key), value FROM distributed_table WHERE key = 1 GROUP BY value ON CONFLICT DO NOTHING;
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NOTICE: executing the command locally: SELECT int4(sum(key)) AS key, value FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) GROUP BY value
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NOTICE: executing the copy locally for colocated file with shard xxxxx
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NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value) SELECT key, value FROM read_intermediate_result('insert_select_XXX_1470001'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text) ON CONFLICT DO NOTHING
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INSERT INTO distributed_table SELECT 1, '1',15 FROM distributed_table WHERE key = 2 LIMIT 1 ON CONFLICT DO NOTHING;
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-- sanity check: multi-shard INSERT..SELECT pushdown goes through distributed execution
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INSERT INTO distributed_table SELECT * FROM distributed_table ON CONFLICT DO NOTHING;
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-- Ensure tuple data in explain analyze output is the same on all PG versions
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SET citus.enable_binary_protocol = TRUE;
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-- EXPLAIN for local execution just works fine
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-- though going through distributed execution
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EXPLAIN (COSTS OFF) SELECT * FROM distributed_table WHERE key = 1 AND age = 20;
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QUERY PLAN
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive)
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Task Count: 1
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Tasks Shown: All
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-> Task
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Node: host=localhost port=xxxxx dbname=regression
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-> Index Scan using distributed_table_pkey_1470001 on distributed_table_1470001 distributed_table
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Index Cond: (key = 1)
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Filter: (age = 20)
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(8 rows)
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF) SELECT * FROM distributed_table WHERE key = 1 AND age = 20;
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QUERY PLAN
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive) (actual rows=1 loops=1)
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Task Count: 1
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Tuple data received from nodes: 14 bytes
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Tasks Shown: All
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-> Task
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Tuple data received from node: 14 bytes
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Node: host=localhost port=xxxxx dbname=regression
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-> Index Scan using distributed_table_pkey_1470001 on distributed_table_1470001 distributed_table (actual rows=1 loops=1)
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Index Cond: (key = 1)
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Filter: (age = 20)
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(10 rows)
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EXPLAIN (ANALYZE ON, COSTS OFF, SUMMARY OFF, TIMING OFF)
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WITH r AS ( SELECT GREATEST(random(), 2) z,* FROM distributed_table)
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SELECT 1 FROM r WHERE z < 3;
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QUERY PLAN
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive) (actual rows=1 loops=1)
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-> Distributed Subplan XXX_1
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Intermediate Data Size: 40 bytes
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Result destination: Write locally
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-> Custom Scan (Citus Adaptive) (actual rows=1 loops=1)
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Task Count: 4
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Tuple data received from nodes: 22 bytes
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Tasks Shown: One of 4
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-> Task
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Tuple data received from node: 22 bytes
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Node: host=localhost port=xxxxx dbname=regression
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-> Seq Scan on distributed_table_1470001 distributed_table (actual rows=1 loops=1)
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Task Count: 1
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Tuple data received from nodes: 4 bytes
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Tasks Shown: All
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-> Task
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Tuple data received from node: 4 bytes
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Node: host=localhost port=xxxxx dbname=regression
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-> Function Scan on read_intermediate_result intermediate_result (actual rows=1 loops=1)
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Filter: (z < '3'::double precision)
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(20 rows)
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EXPLAIN (COSTS OFF) DELETE FROM distributed_table WHERE key = 1 AND age = 20;
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QUERY PLAN
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive)
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Task Count: 1
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Tasks Shown: All
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-> Task
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Node: host=localhost port=xxxxx dbname=regression
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-> Delete on distributed_table_1470001 distributed_table
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-> Index Scan using distributed_table_pkey_1470001 on distributed_table_1470001 distributed_table
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Index Cond: (key = 1)
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Filter: (age = 20)
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(9 rows)
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF) DELETE FROM distributed_table WHERE key = 1 AND age = 20;
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QUERY PLAN
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive) (actual rows=0 loops=1)
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Task Count: 1
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Tasks Shown: All
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-> Task
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Node: host=localhost port=xxxxx dbname=regression
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-> Delete on distributed_table_1470001 distributed_table (actual rows=0 loops=1)
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-> Index Scan using distributed_table_pkey_1470001 on distributed_table_1470001 distributed_table (actual rows=1 loops=1)
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Index Cond: (key = 1)
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Filter: (age = 20)
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Trigger for constraint second_distributed_table_key_fkey_1470005: calls=1
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(10 rows)
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-- show that EXPLAIN ANALYZE deleted the row and cascades deletes
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SELECT * FROM distributed_table WHERE key = 1 AND age = 20 ORDER BY 1,2,3;
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NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((key OPERATOR(pg_catalog.=) 1) AND (age OPERATOR(pg_catalog.=) 20)) ORDER BY key, value, age
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key | value | age
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM second_distributed_table WHERE key = 1 ORDER BY 1,2;
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NOTICE: executing the command locally: SELECT key, value FROM local_shard_execution.second_distributed_table_1470005 second_distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) ORDER BY key, value
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key | value
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---------------------------------------------------------------------
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(0 rows)
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-- Put rows back for other tests
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INSERT INTO distributed_table VALUES (1, '22', 20);
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NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 (key, value, age) VALUES (1, '22'::text, 20)
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INSERT INTO second_distributed_table VALUES (1, '1');
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NOTICE: executing the command locally: INSERT INTO local_shard_execution.second_distributed_table_1470005 (key, value) VALUES (1, '1'::text)
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SET citus.enable_ddl_propagation TO OFF;
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CREATE VIEW abcd_view AS SELECT * FROM abcd;
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RESET citus.enable_ddl_propagation;
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SELECT * FROM abcd first join abcd second on first.b = second.b ORDER BY 1,2,3,4;
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b | c | d | b | c | d
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---------------------------------------------------------------------
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2 | 3 | 4 | 2 | 3 | 4
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3 | 4 | 5 | 3 | 4 | 5
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4 | 5 | 6 | 4 | 5 | 6
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(3 rows)
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BEGIN;
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SELECT * FROM abcd first join abcd second on first.b = second.b ORDER BY 1,2,3,4;
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NOTICE: executing the command locally: SELECT first.b, first.c, first.d, second.b, second.c, second.d FROM (local_shard_execution.abcd_1470025 first JOIN local_shard_execution.abcd_1470025 second ON ((first.b OPERATOR(pg_catalog.=) second.b))) WHERE true
|
|
NOTICE: executing the command locally: SELECT first.b, first.c, first.d, second.b, second.c, second.d FROM (local_shard_execution.abcd_1470027 first JOIN local_shard_execution.abcd_1470027 second ON ((first.b OPERATOR(pg_catalog.=) second.b))) WHERE true
|
|
b | c | d | b | c | d
|
|
---------------------------------------------------------------------
|
|
2 | 3 | 4 | 2 | 3 | 4
|
|
3 | 4 | 5 | 3 | 4 | 5
|
|
4 | 5 | 6 | 4 | 5 | 6
|
|
(3 rows)
|
|
|
|
END;
|
|
BEGIN;
|
|
SELECT * FROM abcd_view first join abcd_view second on first.b = second.b ORDER BY 1,2,3,4;
|
|
NOTICE: executing the command locally: SELECT abcd.b, abcd.c, abcd.d, abcd_1.b, abcd_1.c, abcd_1.d FROM (local_shard_execution.abcd_1470025 abcd JOIN local_shard_execution.abcd_1470025 abcd_1 ON ((abcd.b OPERATOR(pg_catalog.=) abcd_1.b))) WHERE true
|
|
NOTICE: executing the command locally: SELECT abcd.b, abcd.c, abcd.d, abcd_1.b, abcd_1.c, abcd_1.d FROM (local_shard_execution.abcd_1470027 abcd JOIN local_shard_execution.abcd_1470027 abcd_1 ON ((abcd.b OPERATOR(pg_catalog.=) abcd_1.b))) WHERE true
|
|
b | c | d | b | c | d
|
|
---------------------------------------------------------------------
|
|
2 | 3 | 4 | 2 | 3 | 4
|
|
3 | 4 | 5 | 3 | 4 | 5
|
|
4 | 5 | 6 | 4 | 5 | 6
|
|
(3 rows)
|
|
|
|
END;
|
|
BEGIN;
|
|
SELECT * FROM abcd first full join abcd second on first.b = second.b ORDER BY 1,2,3,4;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS b, worker_column_2 AS c, worker_column_3 AS d, worker_column_4 AS b, worker_column_5 AS c, worker_column_6 AS d FROM (SELECT first.b AS worker_column_1, first.c AS worker_column_2, first.d AS worker_column_3, second.b AS worker_column_4, second.c AS worker_column_5, second.d AS worker_column_6 FROM (local_shard_execution.abcd_1470025 first FULL JOIN local_shard_execution.abcd_1470025 second ON ((first.b OPERATOR(pg_catalog.=) second.b)))) worker_subquery
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS b, worker_column_2 AS c, worker_column_3 AS d, worker_column_4 AS b, worker_column_5 AS c, worker_column_6 AS d FROM (SELECT first.b AS worker_column_1, first.c AS worker_column_2, first.d AS worker_column_3, second.b AS worker_column_4, second.c AS worker_column_5, second.d AS worker_column_6 FROM (local_shard_execution.abcd_1470027 first FULL JOIN local_shard_execution.abcd_1470027 second ON ((first.b OPERATOR(pg_catalog.=) second.b)))) worker_subquery
|
|
b | c | d | b | c | d
|
|
---------------------------------------------------------------------
|
|
2 | 3 | 4 | 2 | 3 | 4
|
|
3 | 4 | 5 | 3 | 4 | 5
|
|
4 | 5 | 6 | 4 | 5 | 6
|
|
(3 rows)
|
|
|
|
END;
|
|
BEGIN;
|
|
SELECT * FROM abcd first join abcd second USING(b) ORDER BY 1,2,3,4;
|
|
NOTICE: executing the command locally: SELECT first.b, first.c, first.d, second.c, second.d FROM (local_shard_execution.abcd_1470025 first JOIN local_shard_execution.abcd_1470025 second ON ((first.b OPERATOR(pg_catalog.=) second.b))) WHERE true
|
|
NOTICE: executing the command locally: SELECT first.b, first.c, first.d, second.c, second.d FROM (local_shard_execution.abcd_1470027 first JOIN local_shard_execution.abcd_1470027 second ON ((first.b OPERATOR(pg_catalog.=) second.b))) WHERE true
|
|
b | c | d | c | d
|
|
---------------------------------------------------------------------
|
|
2 | 3 | 4 | 3 | 4
|
|
3 | 4 | 5 | 4 | 5
|
|
4 | 5 | 6 | 5 | 6
|
|
(3 rows)
|
|
|
|
END;
|
|
BEGIN;
|
|
SELECT * FROM abcd first join abcd second USING(b) join abcd third on first.b=third.b ORDER BY 1,2,3,4;
|
|
NOTICE: executing the command locally: SELECT first.b, first.c, first.d, second.c, second.d, third.b, third.c, third.d FROM ((local_shard_execution.abcd_1470025 first JOIN local_shard_execution.abcd_1470025 second ON ((first.b OPERATOR(pg_catalog.=) second.b))) JOIN local_shard_execution.abcd_1470025 third ON ((first.b OPERATOR(pg_catalog.=) third.b))) WHERE true
|
|
NOTICE: executing the command locally: SELECT first.b, first.c, first.d, second.c, second.d, third.b, third.c, third.d FROM ((local_shard_execution.abcd_1470027 first JOIN local_shard_execution.abcd_1470027 second ON ((first.b OPERATOR(pg_catalog.=) second.b))) JOIN local_shard_execution.abcd_1470027 third ON ((first.b OPERATOR(pg_catalog.=) third.b))) WHERE true
|
|
b | c | d | c | d | b | c | d
|
|
---------------------------------------------------------------------
|
|
2 | 3 | 4 | 3 | 4 | 2 | 3 | 4
|
|
3 | 4 | 5 | 4 | 5 | 3 | 4 | 5
|
|
4 | 5 | 6 | 5 | 6 | 4 | 5 | 6
|
|
(3 rows)
|
|
|
|
END;
|
|
-- copy always happens via distributed execution irrespective of the
|
|
-- shards that are accessed
|
|
COPY reference_table FROM STDIN;
|
|
COPY distributed_table FROM STDIN WITH CSV;
|
|
COPY second_distributed_table FROM STDIN WITH CSV;
|
|
-- the behaviour in transaction blocks is the following:
|
|
-- (a) Unless the first query is a local query, always use distributed execution.
|
|
-- (b) If the executor has used local execution, it has to use local execution
|
|
-- for the remaining of the transaction block. If that's not possible, the
|
|
-- executor has to error out
|
|
-- rollback should be able to rollback local execution
|
|
BEGIN;
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29' RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 29 | 20
|
|
(1 row)
|
|
|
|
SELECT * FROM distributed_table WHERE key = 1 ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) ORDER BY key, value, age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 29 | 20
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
-- make sure that the value is rollbacked
|
|
SELECT * FROM distributed_table WHERE key = 1 ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) ORDER BY key, value, age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 22 | 20
|
|
(1 row)
|
|
|
|
-- rollback should be able to rollback both the local and distributed executions
|
|
BEGIN;
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29' RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 29 | 20
|
|
(1 row)
|
|
|
|
DELETE FROM distributed_table;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table
|
|
-- DELETE should cascade, and we should not see any rows
|
|
SELECT count(*) FROM second_distributed_table;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.second_distributed_table_1470005 second_distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.second_distributed_table_1470007 second_distributed_table WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
-- make sure that everything is rollbacked
|
|
SELECT * FROM distributed_table WHERE key = 1 ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) ORDER BY key, value, age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 22 | 20
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM second_distributed_table;
|
|
count
|
|
---------------------------------------------------------------------
|
|
2
|
|
(1 row)
|
|
|
|
SELECT * FROM second_distributed_table ORDER BY 1;
|
|
key | value
|
|
---------------------------------------------------------------------
|
|
1 | 1
|
|
6 | '6'
|
|
(2 rows)
|
|
|
|
-- very simple examples, an SELECTs should see the modifications
|
|
-- that has done before
|
|
BEGIN;
|
|
-- INSERT is executed locally
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '23' RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '23'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 23 | 20
|
|
(1 row)
|
|
|
|
-- since the INSERT is executed locally, the SELECT should also be
|
|
-- executed locally and see the changes
|
|
SELECT * FROM distributed_table WHERE key = 1 ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) ORDER BY key, value, age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 23 | 20
|
|
(1 row)
|
|
|
|
-- multi-shard SELECTs are now forced to use local execution on
|
|
-- the shards that reside on this node
|
|
SELECT * FROM distributed_table WHERE value = '23' ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (value OPERATOR(pg_catalog.=) '23'::text)
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (value OPERATOR(pg_catalog.=) '23'::text)
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 23 | 20
|
|
(1 row)
|
|
|
|
-- similarly, multi-shard modifications should use local exection
|
|
-- on the shards that reside on this node
|
|
DELETE FROM distributed_table WHERE value = '23';
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (value OPERATOR(pg_catalog.=) '23'::text)
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (value OPERATOR(pg_catalog.=) '23'::text)
|
|
-- make sure that the value is deleted
|
|
SELECT * FROM distributed_table WHERE value = '23' ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (value OPERATOR(pg_catalog.=) '23'::text)
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (value OPERATOR(pg_catalog.=) '23'::text)
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
COMMIT;
|
|
-- make sure that we've committed everything
|
|
SELECT * FROM distributed_table WHERE key = 1 ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) ORDER BY key, value, age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
-- if we start with a distributed execution, we should keep
|
|
-- using that and never switch back to local execution
|
|
BEGIN;
|
|
DELETE FROM distributed_table WHERE value = '11';
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (value OPERATOR(pg_catalog.=) '11'::text)
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (value OPERATOR(pg_catalog.=) '11'::text)
|
|
-- although this command could have been executed
|
|
-- locally, it is not going to be executed locally
|
|
SELECT * FROM distributed_table WHERE key = 1 ORDER BY 1,2,3;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1) ORDER BY key, value, age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
-- but we can still execute parallel queries, even if
|
|
-- they are utility commands
|
|
TRUNCATE distributed_table CASCADE;
|
|
NOTICE: truncate cascades to table "second_distributed_table"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
-- TRUNCATE cascaded into second_distributed_table
|
|
SELECT count(*) FROM second_distributed_table;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.second_distributed_table_1470005 second_distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.second_distributed_table_1470007 second_distributed_table WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
-- load some data so that foreign keys won't complain with the next tests
|
|
INSERT INTO reference_table SELECT i FROM generate_series(500, 600) i;
|
|
NOTICE: executing the copy locally for shard xxxxx
|
|
-- show that cascading foreign keys just works fine with local execution
|
|
BEGIN;
|
|
INSERT INTO reference_table VALUES (701);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 (key) VALUES (701)
|
|
INSERT INTO distributed_table VALUES (701, '701', 701);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 (key, value, age) VALUES (701, '701'::text, 701)
|
|
INSERT INTO second_distributed_table VALUES (701, '701');
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.second_distributed_table_1470005 (key, value) VALUES (701, '701'::text)
|
|
DELETE FROM reference_table WHERE key = 701;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.reference_table_1470000 reference_table WHERE (key OPERATOR(pg_catalog.=) 701)
|
|
SELECT count(*) FROM distributed_table WHERE key = 701;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 701)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM second_distributed_table WHERE key = 701;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.second_distributed_table_1470005 second_distributed_table WHERE (key OPERATOR(pg_catalog.=) 701)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- multi-shard commands should also see the changes
|
|
SELECT count(*) FROM distributed_table WHERE key > 700;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.>) 700)
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.>) 700)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- we can still do multi-shard commands
|
|
DELETE FROM distributed_table;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table
|
|
ROLLBACK;
|
|
-- multiple queries hitting different shards can be executed locally
|
|
BEGIN;
|
|
SELECT count(*) FROM distributed_table WHERE key = 1;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM distributed_table WHERE key = 6;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 6)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
-- a local query followed by TRUNCATE command can be executed locally
|
|
BEGIN;
|
|
SELECT count(*) FROM distributed_table WHERE key = 1;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
TRUNCATE distributed_table CASCADE;
|
|
NOTICE: truncate cascades to table "second_distributed_table"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
ROLLBACK;
|
|
-- a local query is followed by an INSERT..SELECT via the coordinator
|
|
BEGIN;
|
|
SELECT count(*) FROM distributed_table WHERE key = 1;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
INSERT INTO distributed_table (key) SELECT i FROM generate_series(1,1) i;
|
|
NOTICE: executing the copy locally for shard xxxxx
|
|
ROLLBACK;
|
|
BEGIN;
|
|
SET citus.enable_repartition_joins TO ON;
|
|
SELECT count(*) FROM distributed_table;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
2
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM distributed_table d1 join distributed_table d2 using(age);
|
|
NOTICE: executing the command locally: SELECT partition_index, 'repartition_70_1' || '_' || partition_index::text , rows_written FROM pg_catalog.worker_partition_query_result('repartition_70_1','SELECT age AS column1 FROM local_shard_execution.distributed_table_1470001 d1 WHERE true',0,'hash','{-2147483648,-1073741824,0,1073741824}'::text[],'{-1073741825,-1,1073741823,2147483647}'::text[],true,true,true) WHERE rows_written > 0
|
|
NOTICE: executing the command locally: SELECT partition_index, 'repartition_70_3' || '_' || partition_index::text , rows_written FROM pg_catalog.worker_partition_query_result('repartition_70_3','SELECT age AS column1 FROM local_shard_execution.distributed_table_1470003 d1 WHERE true',0,'hash','{-2147483648,-1073741824,0,1073741824}'::text[],'{-1073741825,-1,1073741823,2147483647}'::text[],true,true,true) WHERE rows_written > 0
|
|
NOTICE: executing the command locally: SELECT partition_index, 'repartition_71_1' || '_' || partition_index::text , rows_written FROM pg_catalog.worker_partition_query_result('repartition_71_1','SELECT age AS column1 FROM local_shard_execution.distributed_table_1470001 d2 WHERE true',0,'hash','{-2147483648,-1073741824,0,1073741824}'::text[],'{-1073741825,-1,1073741823,2147483647}'::text[],true,true,true) WHERE rows_written > 0
|
|
NOTICE: executing the command locally: SELECT partition_index, 'repartition_71_3' || '_' || partition_index::text , rows_written FROM pg_catalog.worker_partition_query_result('repartition_71_3','SELECT age AS column1 FROM local_shard_execution.distributed_table_1470003 d2 WHERE true',0,'hash','{-2147483648,-1073741824,0,1073741824}'::text[],'{-1073741825,-1,1073741823,2147483647}'::text[],true,true,true) WHERE rows_written > 0
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_1_0']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_2_0']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_3_0']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_4_0']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_1_0']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_2_0']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_3_0']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_4_0']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_1_1']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_2_1']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_3_1']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_4_1']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_1_1']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_2_1']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_3_1']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_4_1']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_1_2']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_2_2']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_3_2']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_4_2']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_1_2']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_2_2']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_3_2']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_4_2']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_1_3']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_2_3']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_3_3']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_70_4_3']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_1_3']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_2_3']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_3_3']::text[],'localhost',57637) bytes
|
|
NOTICE: executing the command locally: SELECT bytes FROM fetch_intermediate_results(ARRAY['repartition_71_4_3']::text[],'localhost',57638) bytes
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM (read_intermediate_results('{repartition_70_1_0,repartition_70_2_0,repartition_70_3_0,repartition_70_4_0}'::text[], 'binary'::citus_copy_format) intermediate_result(column1 bigint) JOIN read_intermediate_results('{repartition_71_1_0,repartition_71_2_0,repartition_71_3_0,repartition_71_4_0}'::text[], 'binary'::citus_copy_format) intermediate_result_1(column1 bigint) ON ((intermediate_result.column1 OPERATOR(pg_catalog.=) intermediate_result_1.column1))) WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM (read_intermediate_results('{repartition_70_1_1,repartition_70_2_1,repartition_70_3_1,repartition_70_4_1}'::text[], 'binary'::citus_copy_format) intermediate_result(column1 bigint) JOIN read_intermediate_results('{repartition_71_1_1,repartition_71_2_1,repartition_71_3_1,repartition_71_4_1}'::text[], 'binary'::citus_copy_format) intermediate_result_1(column1 bigint) ON ((intermediate_result.column1 OPERATOR(pg_catalog.=) intermediate_result_1.column1))) WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM (read_intermediate_results('{repartition_70_1_2,repartition_70_2_2,repartition_70_3_2,repartition_70_4_2}'::text[], 'binary'::citus_copy_format) intermediate_result(column1 bigint) JOIN read_intermediate_results('{repartition_71_1_2,repartition_71_2_2,repartition_71_3_2,repartition_71_4_2}'::text[], 'binary'::citus_copy_format) intermediate_result_1(column1 bigint) ON ((intermediate_result.column1 OPERATOR(pg_catalog.=) intermediate_result_1.column1))) WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM (read_intermediate_results('{repartition_70_1_3,repartition_70_2_3,repartition_70_3_3,repartition_70_4_3}'::text[], 'binary'::citus_copy_format) intermediate_result(column1 bigint) JOIN read_intermediate_results('{repartition_71_1_3,repartition_71_2_3,repartition_71_3_3,repartition_71_4_3}'::text[], 'binary'::citus_copy_format) intermediate_result_1(column1 bigint) ON ((intermediate_result.column1 OPERATOR(pg_catalog.=) intermediate_result_1.column1))) WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
2
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
-- a local query is followed by an INSERT..SELECT with re-partitioning
|
|
BEGIN;
|
|
SELECT count(*) FROM distributed_table WHERE key = 6;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 6)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
INSERT INTO reference_table (key) SELECT -key FROM distributed_table;
|
|
NOTICE: executing the command locally: SELECT (OPERATOR(pg_catalog.-) key) AS key FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT (OPERATOR(pg_catalog.-) key) AS key FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
NOTICE: executing the copy locally for shard xxxxx
|
|
INSERT INTO distributed_table (key) SELECT -key FROM distributed_table;
|
|
NOTICE: executing the command locally: SELECT partition_index, 'repartitioned_results_xxxxx_from_1470001_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_1470001_to','SELECT (OPERATOR(pg_catalog.-) key) AS key FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true',0,'hash','{-2147483648,-1073741824,0,1073741824}'::text[],'{-1073741825,-1,1073741823,2147483647}'::text[],true) WHERE rows_written > 0
|
|
NOTICE: executing the command locally: SELECT partition_index, 'repartitioned_results_xxxxx_from_1470003_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_1470003_to','SELECT (OPERATOR(pg_catalog.-) key) AS key FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true',0,'hash','{-2147483648,-1073741824,0,1073741824}'::text[],'{-1073741825,-1,1073741823,2147483647}'::text[],true) WHERE rows_written > 0
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key) SELECT key FROM read_intermediate_results('{repartitioned_results_xxxxx_from_1470003_to_0}'::text[], 'binary'::citus_copy_format) intermediate_result(key integer)
|
|
SELECT count(*) FROM distributed_table WHERE key = -6;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) '-6'::integer)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29' RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 11 | 21
|
|
(1 row)
|
|
|
|
BEGIN;
|
|
DELETE FROM distributed_table WHERE key = 1;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
EXPLAIN ANALYZE DELETE FROM distributed_table WHERE key = 1;
|
|
ERROR: cannot execute command because a local execution has accessed a placement in the transaction
|
|
DETAIL: Some parallel commands cannot be executed if a previous command has already been executed locally
|
|
HINT: Try re-running the transaction with "SET LOCAL citus.enable_local_execution TO OFF;"
|
|
ROLLBACK;
|
|
BEGIN;
|
|
INSERT INTO distributed_table VALUES (11, '111',29) ON CONFLICT(key) DO UPDATE SET value = '29' RETURNING *;
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
11 | 29 | 121
|
|
(1 row)
|
|
|
|
-- this is already disallowed on the nodes, adding it in case we
|
|
-- support DDLs from the worker nodes in the future
|
|
ALTER TABLE distributed_table ADD COLUMN x INT;
|
|
ERROR: operation is not allowed on this node
|
|
HINT: Connect to the coordinator and run it again.
|
|
ROLLBACK;
|
|
BEGIN;
|
|
INSERT INTO distributed_table VALUES (11, '111',29) ON CONFLICT(key) DO UPDATE SET value = '29' RETURNING *;
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
11 | 29 | 121
|
|
(1 row)
|
|
|
|
-- this is already disallowed because VACUUM cannot be executed in tx block
|
|
-- adding in case this is supported some day
|
|
VACUUM second_distributed_table;
|
|
ERROR: VACUUM cannot run inside a transaction block
|
|
ROLLBACK;
|
|
-- make sure that functions can use local execution
|
|
SET citus.enable_metadata_sync TO OFF;
|
|
CREATE OR REPLACE PROCEDURE only_local_execution() AS $$
|
|
DECLARE cnt INT;
|
|
BEGIN
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29';
|
|
SELECT count(*) INTO cnt FROM distributed_table WHERE key = 1;
|
|
DELETE FROM distributed_table WHERE key = 1;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
CALL only_local_execution();
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text
|
|
CONTEXT: SQL statement "INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29'"
|
|
PL/pgSQL function only_local_execution() line XX at SQL statement
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "SELECT count(*) FROM distributed_table WHERE key = 1"
|
|
PL/pgSQL function only_local_execution() line XX at SQL statement
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "DELETE FROM distributed_table WHERE key = 1"
|
|
PL/pgSQL function only_local_execution() line XX at SQL statement
|
|
-- insert a row that we need in the next tests
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29';
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text
|
|
-- make sure that functions can use local execution
|
|
CREATE OR REPLACE PROCEDURE only_local_execution_with_function_evaluation() AS $$
|
|
DECLARE nodeId INT;
|
|
BEGIN
|
|
-- fast path router
|
|
SELECT get_local_node_id_volatile() INTO nodeId FROM distributed_table WHERE key = 1;
|
|
IF nodeId <= 0 THEN
|
|
RAISE NOTICE 'unexpected node id';
|
|
END IF;
|
|
|
|
-- regular router
|
|
SELECT get_local_node_id_volatile() INTO nodeId FROM distributed_table d1 JOIN distributed_table d2 USING (key) WHERE d1.key = 1;
|
|
IF nodeId <= 0 THEN
|
|
RAISE NOTICE 'unexpected node id';
|
|
END IF;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
CALL only_local_execution_with_function_evaluation();
|
|
NOTICE: executing the command locally: SELECT local_shard_execution.get_local_node_id_volatile() AS get_local_node_id_volatile FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "SELECT get_local_node_id_volatile() FROM distributed_table WHERE key = 1"
|
|
PL/pgSQL function only_local_execution_with_function_evaluation() line XX at SQL statement
|
|
NOTICE: executing the command locally: SELECT local_shard_execution.get_local_node_id_volatile() AS get_local_node_id_volatile FROM (local_shard_execution.distributed_table_1470001 d1(key, value, age) JOIN local_shard_execution.distributed_table_1470001 d2(key, value, age) USING (key)) WHERE (d1.key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "SELECT get_local_node_id_volatile() FROM distributed_table d1 JOIN distributed_table d2 USING (key) WHERE d1.key = 1"
|
|
PL/pgSQL function only_local_execution_with_function_evaluation() line XX at SQL statement
|
|
CREATE OR REPLACE PROCEDURE only_local_execution_with_params(int) AS $$
|
|
DECLARE cnt INT;
|
|
BEGIN
|
|
INSERT INTO distributed_table VALUES ($1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29';
|
|
SELECT count(*) INTO cnt FROM distributed_table WHERE key = $1;
|
|
DELETE FROM distributed_table WHERE key = $1;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
CALL only_local_execution_with_params(1);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '29'::text
|
|
CONTEXT: SQL statement "INSERT INTO distributed_table VALUES ($1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29'"
|
|
PL/pgSQL function only_local_execution_with_params(integer) line XX at SQL statement
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "SELECT count(*) FROM distributed_table WHERE key = $1"
|
|
PL/pgSQL function only_local_execution_with_params(integer) line XX at SQL statement
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "DELETE FROM distributed_table WHERE key = $1"
|
|
PL/pgSQL function only_local_execution_with_params(integer) line XX at SQL statement
|
|
CREATE OR REPLACE PROCEDURE only_local_execution_with_function_evaluation_param(int) AS $$
|
|
DECLARE nodeId INT;
|
|
BEGIN
|
|
-- fast path router
|
|
SELECT get_local_node_id_volatile() INTO nodeId FROM distributed_table WHERE key = $1;
|
|
IF nodeId <= 0 THEN
|
|
RAISE NOTICE 'unexpected node id';
|
|
END IF;
|
|
|
|
-- regular router
|
|
SELECT get_local_node_id_volatile() INTO nodeId FROM distributed_table d1 JOIN distributed_table d2 USING (key) WHERE d1.key = $1;
|
|
IF nodeId <= 0 THEN
|
|
RAISE NOTICE 'unexpected node id';
|
|
END IF;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
CALL only_local_execution_with_function_evaluation_param(1);
|
|
NOTICE: executing the command locally: SELECT local_shard_execution.get_local_node_id_volatile() AS get_local_node_id_volatile FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "SELECT get_local_node_id_volatile() FROM distributed_table WHERE key = $1"
|
|
PL/pgSQL function only_local_execution_with_function_evaluation_param(integer) line XX at SQL statement
|
|
NOTICE: executing the command locally: SELECT local_shard_execution.get_local_node_id_volatile() AS get_local_node_id_volatile FROM (local_shard_execution.distributed_table_1470001 d1(key, value, age) JOIN local_shard_execution.distributed_table_1470001 d2(key, value, age) USING (key)) WHERE (d1.key OPERATOR(pg_catalog.=) $1)
|
|
CONTEXT: SQL statement "SELECT get_local_node_id_volatile() FROM distributed_table d1 JOIN distributed_table d2 USING (key) WHERE d1.key = $1"
|
|
PL/pgSQL function only_local_execution_with_function_evaluation_param(integer) line XX at SQL statement
|
|
CREATE OR REPLACE PROCEDURE local_execution_followed_by_dist() AS $$
|
|
DECLARE cnt INT;
|
|
BEGIN
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29';
|
|
SELECT count(*) INTO cnt FROM distributed_table WHERE key = 1;
|
|
DELETE FROM distributed_table;
|
|
SELECT count(*) INTO cnt FROM distributed_table;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
RESET citus.enable_metadata_sync;
|
|
CALL local_execution_followed_by_dist();
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text
|
|
CONTEXT: SQL statement "INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29'"
|
|
PL/pgSQL function local_execution_followed_by_dist() line XX at SQL statement
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
CONTEXT: SQL statement "SELECT count(*) FROM distributed_table WHERE key = 1"
|
|
PL/pgSQL function local_execution_followed_by_dist() line XX at SQL statement
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table
|
|
CONTEXT: SQL statement "DELETE FROM distributed_table"
|
|
PL/pgSQL function local_execution_followed_by_dist() line XX at SQL statement
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table
|
|
CONTEXT: SQL statement "DELETE FROM distributed_table"
|
|
PL/pgSQL function local_execution_followed_by_dist() line XX at SQL statement
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
CONTEXT: SQL statement "SELECT count(*) FROM distributed_table"
|
|
PL/pgSQL function local_execution_followed_by_dist() line XX at SQL statement
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
CONTEXT: SQL statement "SELECT count(*) FROM distributed_table"
|
|
PL/pgSQL function local_execution_followed_by_dist() line XX at SQL statement
|
|
-- test CTEs, including modifying CTEs
|
|
WITH local_insert AS (INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29' RETURNING *),
|
|
distributed_local_mixed AS (SELECT * FROM reference_table WHERE key IN (SELECT key FROM local_insert))
|
|
SELECT * FROM local_insert, distributed_local_mixed;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
NOTICE: executing the command locally: SELECT key FROM local_shard_execution.reference_table_1470000 reference_table WHERE (key OPERATOR(pg_catalog.=) ANY (SELECT local_insert.key FROM (SELECT intermediate_result.key, intermediate_result.value, intermediate_result.age FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text, age bigint)) local_insert))
|
|
NOTICE: executing the command locally: SELECT local_insert.key, local_insert.value, local_insert.age, distributed_local_mixed.key FROM (SELECT intermediate_result.key, intermediate_result.value, intermediate_result.age FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text, age bigint)) local_insert, (SELECT intermediate_result.key FROM read_intermediate_result('XXX_2'::text, 'binary'::citus_copy_format) intermediate_result(key integer)) distributed_local_mixed
|
|
key | value | age | key
|
|
---------------------------------------------------------------------
|
|
1 | 11 | 21 | 1
|
|
(1 row)
|
|
|
|
-- since we start with parallel execution, we do not switch back to local execution in the
|
|
-- latter CTEs
|
|
WITH distributed_local_mixed AS (SELECT * FROM distributed_table),
|
|
local_insert AS (INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '29' RETURNING *)
|
|
SELECT * FROM local_insert, distributed_local_mixed ORDER BY 1,2,3,4,5;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '29'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS key, worker_column_2 AS value, worker_column_3 AS age, worker_column_4 AS key, worker_column_5 AS value, worker_column_6 AS age FROM (SELECT local_insert.key AS worker_column_1, local_insert.value AS worker_column_2, local_insert.age AS worker_column_3, distributed_local_mixed.key AS worker_column_4, distributed_local_mixed.value AS worker_column_5, distributed_local_mixed.age AS worker_column_6 FROM (SELECT intermediate_result.key, intermediate_result.value, intermediate_result.age FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text, age bigint)) local_insert, (SELECT distributed_table.key, distributed_table.value, distributed_table.age FROM local_shard_execution.distributed_table_1470001 distributed_table) distributed_local_mixed) worker_subquery
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS key, worker_column_2 AS value, worker_column_3 AS age, worker_column_4 AS key, worker_column_5 AS value, worker_column_6 AS age FROM (SELECT local_insert.key AS worker_column_1, local_insert.value AS worker_column_2, local_insert.age AS worker_column_3, distributed_local_mixed.key AS worker_column_4, distributed_local_mixed.value AS worker_column_5, distributed_local_mixed.age AS worker_column_6 FROM (SELECT intermediate_result.key, intermediate_result.value, intermediate_result.age FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text, age bigint)) local_insert, (SELECT distributed_table.key, distributed_table.value, distributed_table.age FROM local_shard_execution.distributed_table_1470003 distributed_table) distributed_local_mixed) worker_subquery
|
|
key | value | age | key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 29 | 21 | 1 | 11 | 21
|
|
(1 row)
|
|
|
|
-- router CTE pushdown
|
|
WITH all_data AS (SELECT * FROM distributed_table WHERE key = 1)
|
|
SELECT
|
|
count(*)
|
|
FROM
|
|
distributed_table, all_data
|
|
WHERE
|
|
distributed_table.key = all_data.key AND distributed_table.key = 1;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table, (SELECT distributed_table_1.key, distributed_table_1.value, distributed_table_1.age FROM local_shard_execution.distributed_table_1470001 distributed_table_1 WHERE (distributed_table_1.key OPERATOR(pg_catalog.=) 1)) all_data WHERE ((distributed_table.key OPERATOR(pg_catalog.=) all_data.key) AND (distributed_table.key OPERATOR(pg_catalog.=) 1))
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
INSERT INTO reference_table VALUES (2);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 (key) VALUES (2)
|
|
INSERT INTO distributed_table VALUES (2, '29', 29);
|
|
INSERT INTO second_distributed_table VALUES (2, '29');
|
|
-- single shard that is not a local query followed by a local query
|
|
WITH all_data AS (SELECT * FROM second_distributed_table WHERE key = 2)
|
|
SELECT
|
|
distributed_table.key
|
|
FROM
|
|
distributed_table, all_data
|
|
WHERE
|
|
distributed_table.value = all_data.value AND distributed_table.key = 1
|
|
ORDER BY
|
|
1 DESC;
|
|
NOTICE: executing the command locally: SELECT distributed_table.key FROM local_shard_execution.distributed_table_1470001 distributed_table, (SELECT intermediate_result.key, intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text)) all_data WHERE ((distributed_table.value OPERATOR(pg_catalog.=) all_data.value) AND (distributed_table.key OPERATOR(pg_catalog.=) 1)) ORDER BY distributed_table.key DESC
|
|
key
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
-- multi-shard CTE is followed by a query which could be executed locally, but
|
|
-- since the query started with a parallel query, it doesn't use local execution
|
|
-- note that if we allow Postgres to inline the CTE (e.g., not have the EXISTS
|
|
-- subquery), then it'd pushdown the filters and the query becomes single-shard,
|
|
-- locally executable query
|
|
WITH all_data AS (SELECT * FROM distributed_table)
|
|
SELECT
|
|
count(*)
|
|
FROM
|
|
distributed_table, all_data
|
|
WHERE
|
|
distributed_table.key = all_data.key AND distributed_table.key = 1
|
|
AND EXISTS (SELECT * FROM all_data);
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table, (SELECT intermediate_result.key, intermediate_result.value, intermediate_result.age FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text, age bigint)) all_data WHERE ((distributed_table.key OPERATOR(pg_catalog.=) all_data.key) AND (distributed_table.key OPERATOR(pg_catalog.=) 1) AND (EXISTS (SELECT all_data_1.key, all_data_1.value, all_data_1.age FROM (SELECT intermediate_result.key, intermediate_result.value, intermediate_result.age FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, value text, age bigint)) all_data_1)))
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
-- in pg12, the following CTE can be inlined, still the query becomes
|
|
-- a subquery that needs to be recursively planned and a parallel
|
|
-- query, so do not use local execution
|
|
WITH all_data AS (SELECT age FROM distributed_table)
|
|
SELECT
|
|
count(*)
|
|
FROM
|
|
distributed_table, all_data
|
|
WHERE
|
|
distributed_table.key = all_data.age AND distributed_table.key = 1;
|
|
NOTICE: executing the command locally: SELECT age FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT age FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table, (SELECT intermediate_result.age FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(age bigint)) all_data WHERE ((distributed_table.key OPERATOR(pg_catalog.=) all_data.age) AND (distributed_table.key OPERATOR(pg_catalog.=) 1))
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- get ready for the next commands
|
|
TRUNCATE reference_table, distributed_table, second_distributed_table;
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.reference_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
-- local execution of returning of reference tables
|
|
INSERT INTO reference_table VALUES (1),(2),(3),(4),(5),(6) RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 AS citus_table_alias (key) VALUES (1), (2), (3), (4), (5), (6) RETURNING citus_table_alias.key
|
|
key
|
|
---------------------------------------------------------------------
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
6
|
|
(6 rows)
|
|
|
|
-- local execution of multi-row INSERTs
|
|
INSERT INTO distributed_table VALUES (1, '11',21), (5,'55',22) ON CONFLICT(key) DO UPDATE SET value = (EXCLUDED.value::int + 1)::text RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'11'::text,'21'::bigint), (5,'55'::text,'22'::bigint) ON CONFLICT(key) DO UPDATE SET value = (((excluded.value)::integer OPERATOR(pg_catalog.+) 1))::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 11 | 21
|
|
5 | 55 | 22
|
|
(2 rows)
|
|
|
|
-- distributed execution of multi-rows INSERTs, where executor
|
|
-- is smart enough to execute local tasks via local execution
|
|
INSERT INTO distributed_table VALUES (1, '11',21), (2,'22',22), (3,'33',33), (4,'44',44),(5,'55',55) ON CONFLICT(key) DO UPDATE SET value = (EXCLUDED.value::int + 1)::text RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'11'::text,'21'::bigint), (5,'55'::text,'55'::bigint) ON CONFLICT(key) DO UPDATE SET value = (((excluded.value)::integer OPERATOR(pg_catalog.+) 1))::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 12 | 21
|
|
2 | 22 | 22
|
|
3 | 33 | 33
|
|
4 | 44 | 44
|
|
5 | 56 | 22
|
|
(5 rows)
|
|
|
|
PREPARE local_prepare_no_param AS SELECT count(*) FROM distributed_table WHERE key = 1;
|
|
PREPARE local_prepare_no_param_subquery AS
|
|
SELECT DISTINCT trim(value) FROM (
|
|
SELECT value FROM distributed_table
|
|
WHERE
|
|
key IN (1, 6, 500, 701)
|
|
AND (select 2) > random()
|
|
order by 1
|
|
limit 2
|
|
) t;
|
|
PREPARE local_prepare_param (int) AS SELECT count(*) FROM distributed_table WHERE key = $1;
|
|
PREPARE remote_prepare_param (int) AS SELECT count(*) FROM distributed_table WHERE key != $1;
|
|
BEGIN;
|
|
-- 8 local execution without params
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
-- 8 local execution without params and some subqueries
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_no_param_subquery;
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT worker_column_1 AS value FROM (SELECT distributed_table.value AS worker_column_1 FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE ((distributed_table.key OPERATOR(pg_catalog.=) ANY (ARRAY[1, 6, 500, 701])) AND (((SELECT 2))::double precision OPERATOR(pg_catalog.>) random()))) worker_subquery ORDER BY worker_column_1 LIMIT '2'::bigint
|
|
NOTICE: executing the command locally: SELECT DISTINCT TRIM(BOTH FROM value) AS btrim FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(value text)) t
|
|
btrim
|
|
---------------------------------------------------------------------
|
|
12
|
|
(1 row)
|
|
|
|
-- 8 local executions with params
|
|
EXECUTE local_prepare_param(1);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_param(5);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 5)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_param(6);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 6)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_param(1);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_param(5);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.=) 5)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_param(6);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 6)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_param(6);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 6)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
EXECUTE local_prepare_param(6);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 6)
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- followed by a non-local execution
|
|
EXECUTE remote_prepare_param(1);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.<>) 1)
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.<>) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
4
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
PREPARE local_insert_prepare_no_param AS INSERT INTO distributed_table VALUES (1+0*random(), '11',21::int) ON CONFLICT(key) DO UPDATE SET value = '29' || '28' RETURNING *, key + 1, value || '30', age * 15;
|
|
PREPARE local_insert_prepare_param (int) AS INSERT INTO distributed_table VALUES ($1+0*random(), '11',21::int) ON CONFLICT(key) DO UPDATE SET value = '29' || '28' RETURNING *, key + 1, value || '30', age * 15;
|
|
BEGIN;
|
|
-- 8 local execution without params
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
-- 8 local executions with params
|
|
EXECUTE local_insert_prepare_param(1);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_param(5);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
5 | 2928 | 22 | 6 | 292830 | 330
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_param(6);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
6 | 11 | 21 | 7 | 1130 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_param(1);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | 2928 | 21 | 2 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_param(5);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
5 | 2928 | 22 | 6 | 292830 | 330
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_param(6);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
6 | 2928 | 21 | 7 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_param(6);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
6 | 2928 | 21 | 7 | 292830 | 315
|
|
(1 row)
|
|
|
|
EXECUTE local_insert_prepare_param(6);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6, '11'::text, '21'::bigint) ON CONFLICT(key) DO UPDATE SET value = '2928'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age, (citus_table_alias.key OPERATOR(pg_catalog.+) 1), (citus_table_alias.value OPERATOR(pg_catalog.||) '30'::text), (citus_table_alias.age OPERATOR(pg_catalog.*) 15)
|
|
key | value | age | ?column? | ?column? | ?column?
|
|
---------------------------------------------------------------------
|
|
6 | 2928 | 21 | 7 | 292830 | 315
|
|
(1 row)
|
|
|
|
-- followed by a non-local execution
|
|
EXECUTE remote_prepare_param(2);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (key OPERATOR(pg_catalog.<>) 2)
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.<>) 2)
|
|
count
|
|
---------------------------------------------------------------------
|
|
5
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
PREPARE local_multi_row_insert_prepare_no_param AS
|
|
INSERT INTO distributed_table VALUES (1,'55', 21), (5,'15',33) ON CONFLICT (key) WHERE key > 3 and key < 4 DO UPDATE SET value = '88' || EXCLUDED.value;
|
|
PREPARE local_multi_row_insert_prepare_no_param_multi_shard AS
|
|
INSERT INTO distributed_table VALUES (6,'55', 21), (5,'15',33) ON CONFLICT (key) WHERE key > 3 AND key < 4 DO UPDATE SET value = '88' || EXCLUDED.value;;
|
|
PREPARE local_multi_row_insert_prepare_params(int,int) AS
|
|
INSERT INTO distributed_table VALUES ($1,'55', 21), ($2,'15',33) ON CONFLICT (key) WHERE key > 3 and key < 4 DO UPDATE SET value = '88' || EXCLUDED.value;;
|
|
INSERT INTO reference_table VALUES (11);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 (key) VALUES (11)
|
|
BEGIN;
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_no_param_multi_shard;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(1,6);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(1,5);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(6,5);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(5,1);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'55'::text,'21'::bigint), (1,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(5,6);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(5,1);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'55'::text,'21'::bigint), (1,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(1,6);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470003 AS citus_table_alias (key, value, age) VALUES (6,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
EXECUTE local_multi_row_insert_prepare_params(1,5);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1,'55'::text,'21'::bigint), (5,'15'::text,'33'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
-- one task is remote
|
|
EXECUTE local_multi_row_insert_prepare_params(5,11);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (5,'55'::text,'21'::bigint) ON CONFLICT(key) WHERE ((key OPERATOR(pg_catalog.>) 3) AND (key OPERATOR(pg_catalog.<) 4)) DO UPDATE SET value = ('88'::text OPERATOR(pg_catalog.||) excluded.value)
|
|
ROLLBACK;
|
|
-- make sure that we still get results if we switch off local execution
|
|
PREPARE ref_count_prepare AS SELECT count(*) FROM reference_table;
|
|
EXECUTE ref_count_prepare;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.reference_table_1470000 reference_table
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
EXECUTE ref_count_prepare;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.reference_table_1470000 reference_table
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
EXECUTE ref_count_prepare;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.reference_table_1470000 reference_table
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
EXECUTE ref_count_prepare;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.reference_table_1470000 reference_table
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
EXECUTE ref_count_prepare;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.reference_table_1470000 reference_table
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
SET citus.enable_local_execution TO off;
|
|
EXECUTE ref_count_prepare;
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
RESET citus.enable_local_execution;
|
|
-- failures of local execution should rollback both the
|
|
-- local execution and remote executions
|
|
-- fail on a local execution
|
|
BEGIN;
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '100' RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '100'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 100 | 21
|
|
(1 row)
|
|
|
|
UPDATE distributed_table SET value = '200';
|
|
NOTICE: executing the command locally: UPDATE local_shard_execution.distributed_table_1470001 distributed_table SET value = '200'::text
|
|
NOTICE: executing the command locally: UPDATE local_shard_execution.distributed_table_1470003 distributed_table SET value = '200'::text
|
|
INSERT INTO distributed_table VALUES (1, '100',21) ON CONFLICT(key) DO UPDATE SET value = (1 / (100.0 - EXCLUDED.value::int))::text RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '100'::text, 21) ON CONFLICT(key) DO UPDATE SET value = (((1)::numeric OPERATOR(pg_catalog./) (100.0 OPERATOR(pg_catalog.-) ((excluded.value)::integer)::numeric)))::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
ERROR: division by zero
|
|
ROLLBACK;
|
|
-- we've rollbacked everything
|
|
SELECT count(*) FROM distributed_table WHERE value = '200';
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- RETURNING should just work fine for reference tables
|
|
INSERT INTO reference_table VALUES (500) RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 (key) VALUES (500) RETURNING key
|
|
key
|
|
---------------------------------------------------------------------
|
|
500
|
|
(1 row)
|
|
|
|
DELETE FROM reference_table WHERE key = 500 RETURNING *;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.reference_table_1470000 reference_table WHERE (key OPERATOR(pg_catalog.=) 500) RETURNING key
|
|
key
|
|
---------------------------------------------------------------------
|
|
500
|
|
(1 row)
|
|
|
|
-- should be able to skip local execution even if in a sequential mode of execution
|
|
BEGIN;
|
|
SET LOCAL citus.multi_shard_modify_mode TO sequential ;
|
|
DELETE FROM distributed_table;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '100' RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '100'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 11 | 21
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
-- sequential execution should just work fine after a local execution
|
|
BEGIN;
|
|
SET citus.multi_shard_modify_mode TO sequential ;
|
|
INSERT INTO distributed_table VALUES (1, '11',21) ON CONFLICT(key) DO UPDATE SET value = '100' RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 AS citus_table_alias (key, value, age) VALUES (1, '11'::text, 21) ON CONFLICT(key) DO UPDATE SET value = '100'::text RETURNING citus_table_alias.key, citus_table_alias.value, citus_table_alias.age
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
1 | 100 | 21
|
|
(1 row)
|
|
|
|
DELETE FROM distributed_table;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table
|
|
ROLLBACK;
|
|
-- load some data so that foreign keys won't complain with the next tests
|
|
TRUNCATE reference_table CASCADE;
|
|
NOTICE: truncate cascades to table "distributed_table"
|
|
NOTICE: truncate cascades to table "second_distributed_table"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.reference_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
INSERT INTO reference_table SELECT i FROM generate_series(500, 600) i;
|
|
NOTICE: executing the copy locally for shard xxxxx
|
|
INSERT INTO distributed_table SELECT i, i::text, i % 10 + 25 FROM generate_series(500, 600) i;
|
|
NOTICE: executing the copy locally for shard xxxxx
|
|
NOTICE: executing the copy locally for shard xxxxx
|
|
-- show that both local, and mixed local-distributed executions
|
|
-- calculate rows processed correctly
|
|
BEGIN;
|
|
DELETE FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
DELETE FROM distributed_table WHERE value != '123123213123213';
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE (value OPERATOR(pg_catalog.<>) '123123213123213'::text)
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (value OPERATOR(pg_catalog.<>) '123123213123213'::text)
|
|
ROLLBACK;
|
|
BEGIN;
|
|
DELETE FROM reference_table WHERE key = 500 RETURNING *;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.reference_table_1470000 reference_table WHERE (key OPERATOR(pg_catalog.=) 500) RETURNING key
|
|
key
|
|
---------------------------------------------------------------------
|
|
500
|
|
(1 row)
|
|
|
|
DELETE FROM reference_table;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.reference_table_1470000 reference_table
|
|
ROLLBACK;
|
|
BEGIN;
|
|
DELETE FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
SELECT count(*) FROM distributed_table;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
100
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
BEGIN;
|
|
SET LOCAL client_min_messages TO INFO;
|
|
SELECT count(*) FROM distributed_table;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
101
|
|
(1 row)
|
|
|
|
SET LOCAL client_min_messages TO LOG;
|
|
DELETE FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
ROLLBACK;
|
|
-- probably not a realistic case since views are not very
|
|
-- well supported with MX
|
|
SET citus.enable_ddl_propagation TO OFF;
|
|
CREATE VIEW v_local_query_execution AS
|
|
SELECT * FROM distributed_table WHERE key = 500;
|
|
RESET citus.enable_ddl_propagation;
|
|
SELECT * FROM v_local_query_execution;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM (SELECT distributed_table.key, distributed_table.value, distributed_table.age FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (distributed_table.key OPERATOR(pg_catalog.=) 500)) v_local_query_execution
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
500 | 500 | 25
|
|
(1 row)
|
|
|
|
-- similar test, but this time the view itself is a non-local
|
|
-- query, but the query on the view is local
|
|
SET citus.enable_ddl_propagation TO OFF;
|
|
CREATE VIEW v_local_query_execution_2 AS
|
|
SELECT * FROM distributed_table;
|
|
RESET citus.enable_ddl_propagation;
|
|
SELECT * FROM v_local_query_execution_2 WHERE key = 500;
|
|
NOTICE: executing the command locally: SELECT key, value, age FROM (SELECT distributed_table.key, distributed_table.value, distributed_table.age FROM local_shard_execution.distributed_table_1470003 distributed_table) v_local_query_execution_2 WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
key | value | age
|
|
---------------------------------------------------------------------
|
|
500 | 500 | 25
|
|
(1 row)
|
|
|
|
-- even if we switch from remote execution -> local execution,
|
|
-- we are able to use remote execution after rollback
|
|
BEGIN;
|
|
SAVEPOINT my_savepoint;
|
|
SELECT count(*) FROM distributed_table;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
101
|
|
(1 row)
|
|
|
|
DELETE FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
ROLLBACK TO SAVEPOINT my_savepoint;
|
|
DELETE FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
COMMIT;
|
|
-- even if we switch from local execution -> remote execution,
|
|
-- we are able to use local execution after rollback
|
|
BEGIN;
|
|
SAVEPOINT my_savepoint;
|
|
DELETE FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
SELECT count(*) FROM distributed_table;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470001 distributed_table WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
100
|
|
(1 row)
|
|
|
|
ROLLBACK TO SAVEPOINT my_savepoint;
|
|
DELETE FROM distributed_table WHERE key = 500;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table WHERE (key OPERATOR(pg_catalog.=) 500)
|
|
COMMIT;
|
|
-- sanity check: local execution on partitions
|
|
INSERT INTO collections_list (collection_id) VALUES (0) RETURNING *;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470011 (key, ser, collection_id) VALUES ('3940649673949185'::bigint, '3940649673949185'::bigint, 0) RETURNING key, ser, ts, collection_id, value
|
|
key | ser | ts | collection_id | value
|
|
---------------------------------------------------------------------
|
|
3940649673949185 | 3940649673949185 | | 0 |
|
|
(1 row)
|
|
|
|
BEGIN;
|
|
INSERT INTO collections_list (key, collection_id) VALUES (1,0);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470009 (key, ser, collection_id) VALUES ('1'::bigint, '3940649673949186'::bigint, 0)
|
|
SELECT count(*) FROM collections_list_0 WHERE key = 1;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.collections_list_0_1470013 collections_list_0 WHERE (key OPERATOR(pg_catalog.=) 1)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM collections_list;
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.collections_list_1470009 collections_list WHERE true
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.collections_list_1470011 collections_list WHERE true
|
|
count
|
|
---------------------------------------------------------------------
|
|
2
|
|
(1 row)
|
|
|
|
SELECT * FROM collections_list ORDER BY 1,2,3,4;
|
|
NOTICE: executing the command locally: SELECT key, ser, ts, collection_id, value FROM local_shard_execution.collections_list_1470009 collections_list WHERE true
|
|
NOTICE: executing the command locally: SELECT key, ser, ts, collection_id, value FROM local_shard_execution.collections_list_1470011 collections_list WHERE true
|
|
key | ser | ts | collection_id | value
|
|
---------------------------------------------------------------------
|
|
1 | 3940649673949186 | | 0 |
|
|
3940649673949185 | 3940649673949185 | | 0 |
|
|
(2 rows)
|
|
|
|
COMMIT;
|
|
TRUNCATE collections_list;
|
|
-- make sure that even if local execution is used, the sequence values
|
|
-- are generated locally
|
|
SET citus.enable_ddl_propagation TO OFF;
|
|
ALTER SEQUENCE collections_list_key_seq NO MINVALUE NO MAXVALUE;
|
|
RESET citus.enable_ddl_propagation;
|
|
PREPARE serial_prepared_local AS INSERT INTO collections_list (collection_id) VALUES (0) RETURNING key, ser;
|
|
SELECT setval('collections_list_key_seq', 4);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
4
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470009 (key, ser, collection_id) VALUES ('5'::bigint, '3940649673949187'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
5 | 3940649673949187
|
|
(1 row)
|
|
|
|
SELECT setval('collections_list_key_seq', 5);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
5
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470011 (key, ser, collection_id) VALUES ('6'::bigint, '3940649673949188'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
6 | 3940649673949188
|
|
(1 row)
|
|
|
|
SELECT setval('collections_list_key_seq', 499);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
499
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470011 (key, ser, collection_id) VALUES ('500'::bigint, '3940649673949189'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
500 | 3940649673949189
|
|
(1 row)
|
|
|
|
SELECT setval('collections_list_key_seq', 700);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
700
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470009 (key, ser, collection_id) VALUES ('701'::bigint, '3940649673949190'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
701 | 3940649673949190
|
|
(1 row)
|
|
|
|
SELECT setval('collections_list_key_seq', 708);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
708
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470011 (key, ser, collection_id) VALUES ('709'::bigint, '3940649673949191'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
709 | 3940649673949191
|
|
(1 row)
|
|
|
|
SELECT setval('collections_list_key_seq', 709);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
709
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470009 (key, ser, collection_id) VALUES ('710'::bigint, '3940649673949192'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
710 | 3940649673949192
|
|
(1 row)
|
|
|
|
-- get ready for the next executions
|
|
DELETE FROM collections_list WHERE key IN (5,6);
|
|
SELECT setval('collections_list_key_seq', 4);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
4
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470009 (key, ser, collection_id) VALUES ('5'::bigint, '3940649673949193'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
5 | 3940649673949193
|
|
(1 row)
|
|
|
|
SELECT setval('collections_list_key_seq', 5);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
5
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.collections_list_1470011 (key, ser, collection_id) VALUES ('6'::bigint, '3940649673949194'::bigint, 0) RETURNING key, ser
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
6 | 3940649673949194
|
|
(1 row)
|
|
|
|
-- and, one remote test
|
|
SELECT setval('collections_list_key_seq', 10);
|
|
setval
|
|
---------------------------------------------------------------------
|
|
10
|
|
(1 row)
|
|
|
|
EXECUTE serial_prepared_local;
|
|
key | ser
|
|
---------------------------------------------------------------------
|
|
11 | 3940649673949195
|
|
(1 row)
|
|
|
|
-- the final queries for the following CTEs are going to happen on the intermediate results only
|
|
-- one of them will be executed remotely, and the other is locally
|
|
-- Citus currently doesn't allow using task_assignment_policy for intermediate results
|
|
WITH distributed_local_mixed AS (INSERT INTO reference_table VALUES (1000) RETURNING *) SELECT * FROM distributed_local_mixed;
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 (key) VALUES (1000) RETURNING key
|
|
NOTICE: executing the command locally: SELECT key FROM (SELECT intermediate_result.key FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer)) distributed_local_mixed
|
|
key
|
|
---------------------------------------------------------------------
|
|
1000
|
|
(1 row)
|
|
|
|
-- clean the table for the next tests
|
|
SET search_path TO local_shard_execution;
|
|
TRUNCATE distributed_table CASCADE;
|
|
NOTICE: truncate cascades to table "second_distributed_table"
|
|
-- load some data on a remote shard
|
|
INSERT INTO reference_table (key) VALUES (1), (2);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 AS citus_table_alias (key) VALUES (1), (2)
|
|
INSERT INTO distributed_table (key) VALUES (2);
|
|
BEGIN;
|
|
-- local execution followed by a distributed query
|
|
INSERT INTO distributed_table (key) VALUES (1);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.distributed_table_1470001 (key) VALUES (1)
|
|
DELETE FROM distributed_table RETURNING key;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470001 distributed_table RETURNING key
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.distributed_table_1470003 distributed_table RETURNING key
|
|
key
|
|
---------------------------------------------------------------------
|
|
1
|
|
2
|
|
(2 rows)
|
|
|
|
COMMIT;
|
|
-- a similar test with a reference table
|
|
TRUNCATE reference_table CASCADE;
|
|
NOTICE: truncate cascades to table "distributed_table"
|
|
NOTICE: truncate cascades to table "second_distributed_table"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.reference_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.distributed_table_xxxxx CASCADE
|
|
NOTICE: truncate cascades to table "second_distributed_table_xxxxx"
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
NOTICE: executing the command locally: TRUNCATE TABLE local_shard_execution.second_distributed_table_xxxxx CASCADE
|
|
-- load some data on a remote shard
|
|
INSERT INTO reference_table (key) VALUES (2);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 (key) VALUES (2)
|
|
BEGIN;
|
|
-- local execution followed by a distributed query
|
|
INSERT INTO reference_table (key) VALUES (1);
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.reference_table_1470000 (key) VALUES (1)
|
|
DELETE FROM reference_table RETURNING key;
|
|
NOTICE: executing the command locally: DELETE FROM local_shard_execution.reference_table_1470000 reference_table RETURNING key
|
|
key
|
|
---------------------------------------------------------------------
|
|
1
|
|
2
|
|
(2 rows)
|
|
|
|
COMMIT;
|
|
-- however complex the query, local execution can handle
|
|
SET client_min_messages TO LOG;
|
|
SET citus.log_local_commands TO ON;
|
|
WITH cte_1 AS
|
|
(SELECT *
|
|
FROM
|
|
(WITH cte_1 AS
|
|
(SELECT *
|
|
FROM distributed_table
|
|
WHERE key = 1) SELECT *
|
|
FROM cte_1) AS foo)
|
|
SELECT count(*)
|
|
FROM cte_1
|
|
JOIN distributed_table USING (key)
|
|
WHERE distributed_table.key = 1
|
|
AND distributed_table.key IN
|
|
(SELECT key
|
|
FROM distributed_table
|
|
WHERE key = 1);
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM ((SELECT foo.key, foo.value, foo.age FROM (SELECT cte_1_1.key, cte_1_1.value, cte_1_1.age FROM (SELECT distributed_table_1.key, distributed_table_1.value, distributed_table_1.age FROM local_shard_execution.distributed_table_1470001 distributed_table_1 WHERE (distributed_table_1.key OPERATOR(pg_catalog.=) 1)) cte_1_1) foo) cte_1 JOIN local_shard_execution.distributed_table_1470001 distributed_table(key, value, age) USING (key)) WHERE ((distributed_table.key OPERATOR(pg_catalog.=) 1) AND (distributed_table.key OPERATOR(pg_catalog.=) ANY (SELECT distributed_table_1.key FROM local_shard_execution.distributed_table_1470001 distributed_table_1 WHERE (distributed_table_1.key OPERATOR(pg_catalog.=) 1))))
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
RESET client_min_messages;
|
|
RESET citus.log_local_commands;
|
|
\c - - - :master_port
|
|
SET search_path TO local_shard_execution;
|
|
SET citus.next_shard_id TO 1480000;
|
|
-- test both local and remote execution with custom type
|
|
SET citus.shard_replication_factor TO 1;
|
|
CREATE TYPE invite_resp AS ENUM ('yes', 'no', 'maybe');
|
|
CREATE TABLE event_responses (
|
|
event_id int,
|
|
user_id int,
|
|
response invite_resp,
|
|
primary key (event_id, user_id)
|
|
);
|
|
SELECT create_distributed_table('event_responses', 'event_id');
|
|
create_distributed_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
INSERT INTO event_responses VALUES (1, 1, 'yes'), (2, 2, 'yes'), (3, 3, 'no'), (4, 4, 'no');
|
|
CREATE TABLE event_responses_no_pkey (
|
|
event_id int,
|
|
user_id int,
|
|
response invite_resp
|
|
);
|
|
SELECT create_distributed_table('event_responses_no_pkey', 'event_id');
|
|
create_distributed_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
CREATE OR REPLACE FUNCTION regular_func(p invite_resp)
|
|
RETURNS int AS $$
|
|
DECLARE
|
|
q1Result INT;
|
|
q2Result INT;
|
|
q3Result INT;
|
|
BEGIN
|
|
SELECT count(*) INTO q1Result FROM event_responses WHERE response = $1;
|
|
SELECT count(*) INTO q2Result FROM event_responses e1 LEFT JOIN event_responses e2 USING (event_id) WHERE e2.response = $1;
|
|
SELECT count(*) INTO q3Result FROM (SELECT * FROM event_responses WHERE response = $1 LIMIT 5) as foo;
|
|
RETURN q3Result+q2Result+q1Result;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
SELECT regular_func('yes');
|
|
regular_func
|
|
---------------------------------------------------------------------
|
|
6
|
|
(1 row)
|
|
|
|
CREATE OR REPLACE PROCEDURE regular_procedure(p invite_resp)
|
|
AS $$
|
|
BEGIN
|
|
PERFORM * FROM event_responses WHERE response = $1 ORDER BY 1 DESC, 2 DESC, 3 DESC;
|
|
PERFORM * FROM event_responses e1 LEFT JOIN event_responses e2 USING (event_id) WHERE e2.response = $1 ORDER BY 1 DESC, 2 DESC, 3 DESC, 4 DESC;
|
|
PERFORM * FROM (SELECT * FROM event_responses WHERE response = $1 LIMIT 5) as foo ORDER BY 1 DESC, 2 DESC, 3 DESC;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
CALL regular_procedure('no');
|
|
CALL regular_procedure('no');
|
|
CALL regular_procedure('no');
|
|
CALL regular_procedure('no');
|
|
CALL regular_procedure('no');
|
|
CALL regular_procedure('no');
|
|
CALL regular_procedure('no');
|
|
CALL regular_procedure('no');
|
|
PREPARE multi_shard_no_dist_key(invite_resp) AS select * from event_responses where response = $1::invite_resp ORDER BY 1 DESC, 2 DESC, 3 DESC LIMIT 1;
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_no_dist_key('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
PREPARE multi_shard_with_dist_key(int, invite_resp) AS select * from event_responses where event_id > $1 AND response = $2::invite_resp ORDER BY 1 DESC, 2 DESC, 3 DESC LIMIT 1;
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE multi_shard_with_dist_key(1, 'yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
PREPARE query_pushdown_no_dist_key(invite_resp) AS select * from event_responses e1 LEFT JOIN event_responses e2 USING(event_id) where e1.response = $1::invite_resp ORDER BY 1 DESC, 2 DESC, 3 DESC, 4 DESC LIMIT 1;
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
EXECUTE query_pushdown_no_dist_key('yes');
|
|
event_id | user_id | response | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes | 2 | yes
|
|
(1 row)
|
|
|
|
PREPARE insert_select_via_coord(invite_resp) AS INSERT INTO event_responses SELECT * FROM event_responses where response = $1::invite_resp LIMIT 1 ON CONFLICT (event_id, user_id) DO NOTHING ;
|
|
EXECUTE insert_select_via_coord('yes');
|
|
EXECUTE insert_select_via_coord('yes');
|
|
EXECUTE insert_select_via_coord('yes');
|
|
EXECUTE insert_select_via_coord('yes');
|
|
EXECUTE insert_select_via_coord('yes');
|
|
EXECUTE insert_select_via_coord('yes');
|
|
EXECUTE insert_select_via_coord('yes');
|
|
EXECUTE insert_select_via_coord('yes');
|
|
PREPARE insert_select_pushdown(invite_resp) AS INSERT INTO event_responses SELECT * FROM event_responses where response = $1::invite_resp ON CONFLICT (event_id, user_id) DO NOTHING;
|
|
EXECUTE insert_select_pushdown('yes');
|
|
EXECUTE insert_select_pushdown('yes');
|
|
EXECUTE insert_select_pushdown('yes');
|
|
EXECUTE insert_select_pushdown('yes');
|
|
EXECUTE insert_select_pushdown('yes');
|
|
EXECUTE insert_select_pushdown('yes');
|
|
EXECUTE insert_select_pushdown('yes');
|
|
EXECUTE insert_select_pushdown('yes');
|
|
PREPARE router_select_with_no_dist_key_filter(invite_resp) AS select * from event_responses where event_id = 1 AND response = $1::invite_resp ORDER BY 1 DESC, 2 DESC, 3 DESC LIMIT 1;
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
EXECUTE router_select_with_no_dist_key_filter('yes');
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 1 | yes
|
|
(1 row)
|
|
|
|
-- rest of the tests assume the table is empty
|
|
TRUNCATE event_responses;
|
|
CREATE OR REPLACE PROCEDURE register_for_event(p_event_id int, p_user_id int, p_choice invite_resp)
|
|
LANGUAGE plpgsql
|
|
SET search_path TO local_shard_execution
|
|
AS $fn$
|
|
BEGIN
|
|
INSERT INTO event_responses VALUES (p_event_id, p_user_id, p_choice)
|
|
ON CONFLICT (event_id, user_id)
|
|
DO UPDATE SET response = EXCLUDED.response;
|
|
|
|
PERFORM count(*) FROM event_responses WHERE event_id = p_event_id;
|
|
|
|
PERFORM count(*) FROM event_responses WHERE event_id = p_event_id AND false;
|
|
|
|
UPDATE event_responses SET response = p_choice WHERE event_id = p_event_id;
|
|
|
|
END;
|
|
$fn$;
|
|
SELECT create_distributed_function('register_for_event(int,int,invite_resp)', 'p_event_id', 'event_responses');
|
|
create_distributed_function
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
-- call 8 times to make sure it works after the 5th time(postgres binds values after the 5th time and Citus 2nd time)
|
|
-- after 6th, the local execution caches the local plans and uses it
|
|
-- execute it both locally and remotely
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
\c - - - :worker_2_port
|
|
SET search_path TO local_shard_execution;
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
CALL register_for_event(16, 1, 'yes');
|
|
-- values 16, 17 and 19 hits the same
|
|
-- shard, so we're re-using the same cached
|
|
-- plans per statement across different distribution
|
|
-- key values
|
|
CALL register_for_event(17, 1, 'yes');
|
|
CALL register_for_event(19, 1, 'yes');
|
|
CALL register_for_event(17, 1, 'yes');
|
|
CALL register_for_event(19, 1, 'yes');
|
|
-- should work fine if the logs are enabled
|
|
\set VERBOSITY terse
|
|
SET citus.log_local_commands TO ON;
|
|
SET client_min_messages TO DEBUG2;
|
|
CALL register_for_event(19, 1, 'yes');
|
|
DEBUG: not pushing down procedure to the same node
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.event_responses_1480001 AS citus_table_alias (event_id, user_id, response) VALUES (19, 1, 'yes'::local_shard_execution.invite_resp) ON CONFLICT(event_id, user_id) DO UPDATE SET response = excluded.response
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.event_responses_1480001 event_responses WHERE (event_id OPERATOR(pg_catalog.=) 19)
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM (SELECT NULL::integer AS event_id, NULL::integer AS user_id, NULL::local_shard_execution.invite_resp AS response WHERE false) event_responses(event_id, user_id, response) WHERE ((event_id OPERATOR(pg_catalog.=) 19) AND false)
|
|
NOTICE: executing the command locally: UPDATE local_shard_execution.event_responses_1480001 event_responses SET response = 'yes'::local_shard_execution.invite_resp WHERE (event_id OPERATOR(pg_catalog.=) 19)
|
|
-- should be fine even if no parameters exists in the query
|
|
SELECT count(*) FROM event_responses WHERE event_id = 16;
|
|
DEBUG: Distributed planning for a fast-path router query
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.event_responses_1480001 event_responses WHERE (event_id OPERATOR(pg_catalog.=) 16)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM event_responses WHERE event_id = 16;
|
|
DEBUG: Distributed planning for a fast-path router query
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
NOTICE: executing the command locally: SELECT count(*) AS count FROM local_shard_execution.event_responses_1480001 event_responses WHERE (event_id OPERATOR(pg_catalog.=) 16)
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
UPDATE event_responses SET response = 'no' WHERE event_id = 16;
|
|
DEBUG: Distributed planning for a fast-path router query
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
NOTICE: executing the command locally: UPDATE local_shard_execution.event_responses_1480001 event_responses SET response = 'no'::local_shard_execution.invite_resp WHERE (event_id OPERATOR(pg_catalog.=) 16)
|
|
INSERT INTO event_responses VALUES (16, 666, 'maybe')
|
|
ON CONFLICT (event_id, user_id)
|
|
DO UPDATE SET response = EXCLUDED.response RETURNING *;
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.event_responses_1480001 AS citus_table_alias (event_id, user_id, response) VALUES (16, 666, 'maybe'::local_shard_execution.invite_resp) ON CONFLICT(event_id, user_id) DO UPDATE SET response = excluded.response RETURNING citus_table_alias.event_id, citus_table_alias.user_id, citus_table_alias.response
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
16 | 666 | maybe
|
|
(1 row)
|
|
|
|
-- multi row INSERTs hitting the same shard
|
|
INSERT INTO event_responses VALUES (16, 666, 'maybe'), (17, 777, 'no')
|
|
ON CONFLICT (event_id, user_id)
|
|
DO UPDATE SET response = EXCLUDED.response RETURNING *;
|
|
DEBUG: Creating router plan
|
|
NOTICE: executing the command locally: INSERT INTO local_shard_execution.event_responses_1480001 AS citus_table_alias (event_id, user_id, response) VALUES (16,666,'maybe'::local_shard_execution.invite_resp), (17,777,'no'::local_shard_execution.invite_resp) ON CONFLICT(event_id, user_id) DO UPDATE SET response = excluded.response RETURNING citus_table_alias.event_id, citus_table_alias.user_id, citus_table_alias.response
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
16 | 666 | maybe
|
|
17 | 777 | no
|
|
(2 rows)
|
|
|
|
-- now, similar tests with some settings changed
|
|
SET citus.enable_local_execution TO false;
|
|
SET citus.enable_fast_path_router_planner TO false;
|
|
CALL register_for_event(19, 1, 'yes');
|
|
DEBUG: not pushing down procedure to the same node
|
|
-- should be fine even if no parameters exists in the query
|
|
SELECT count(*) FROM event_responses WHERE event_id = 16;
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
count
|
|
---------------------------------------------------------------------
|
|
2
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM event_responses WHERE event_id = 16;
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
count
|
|
---------------------------------------------------------------------
|
|
2
|
|
(1 row)
|
|
|
|
UPDATE event_responses SET response = 'no' WHERE event_id = 16;
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
INSERT INTO event_responses VALUES (16, 666, 'maybe')
|
|
ON CONFLICT (event_id, user_id)
|
|
DO UPDATE SET response = EXCLUDED.response RETURNING *;
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 16
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
16 | 666 | maybe
|
|
(1 row)
|
|
|
|
-- multi row INSERTs hitting the same shard
|
|
INSERT INTO event_responses VALUES (16, 666, 'maybe'), (17, 777, 'no')
|
|
ON CONFLICT (event_id, user_id)
|
|
DO UPDATE SET response = EXCLUDED.response RETURNING *;
|
|
DEBUG: Creating router plan
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
16 | 666 | maybe
|
|
17 | 777 | no
|
|
(2 rows)
|
|
|
|
-- set back to sane settings
|
|
RESET citus.enable_local_execution;
|
|
RESET citus.enable_fast_path_router_planner;
|
|
-- we'll test some 2PC states
|
|
SET citus.enable_metadata_sync TO OFF;
|
|
-- coordinated_transaction_should_use_2PC prints the internal
|
|
-- state for 2PC decision on Citus. However, even if 2PC is decided,
|
|
-- we may not necessarily use 2PC over a connection unless it does
|
|
-- a modification
|
|
CREATE OR REPLACE FUNCTION coordinated_transaction_should_use_2PC()
|
|
RETURNS BOOL LANGUAGE C STRICT VOLATILE AS 'citus',
|
|
$$coordinated_transaction_should_use_2PC$$;
|
|
-- make tests consistent
|
|
SET citus.max_adaptive_executor_pool_size TO 1;
|
|
RESET citus.enable_metadata_sync;
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SET citus.log_remote_commands TO ON;
|
|
-- we use event_id = 2 for local execution and event_id = 1 for reemote execution
|
|
--show it here, if anything changes here, all the tests below might be broken
|
|
-- we prefer this to avoid excessive logging below
|
|
SELECT * FROM event_responses_no_pkey WHERE event_id = 2;
|
|
DEBUG: Distributed planning for a fast-path router query
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 2
|
|
NOTICE: executing the command locally: SELECT event_id, user_id, response FROM local_shard_execution.event_responses_no_pkey_1480007 event_responses_no_pkey WHERE (event_id OPERATOR(pg_catalog.=) 2)
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
SELECT * FROM event_responses_no_pkey WHERE event_id = 1;
|
|
DEBUG: Distributed planning for a fast-path router query
|
|
DEBUG: Creating router plan
|
|
DEBUG: query has a single distribution column value: 1
|
|
NOTICE: issuing SELECT event_id, user_id, response FROM local_shard_execution.event_responses_no_pkey_1480004 event_responses_no_pkey WHERE (event_id OPERATOR(pg_catalog.=) 1)
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
RESET citus.log_remote_commands;
|
|
RESET citus.log_local_commands;
|
|
RESET client_min_messages;
|
|
-- single shard local command without transaction block does set the
|
|
-- internal state for 2PC, but does not require any actual entries
|
|
WITH cte_1 AS (INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *)
|
|
SELECT coordinated_transaction_should_use_2PC() FROM cte_1;
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- two local commands without transaction block set the internal 2PC state
|
|
-- but does not use remotely
|
|
WITH cte_1 AS (INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *),
|
|
cte_2 AS (INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard local modification followed by another single shard
|
|
-- local modification sets the 2PC state, but does not use remotely
|
|
BEGIN;
|
|
INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard local modification followed by a single shard
|
|
-- remote modification uses 2PC because multiple nodes involved
|
|
-- in the modification
|
|
BEGIN;
|
|
INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
INSERT INTO event_responses_no_pkey VALUES (1, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 2 | yes
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard local modification followed by a single shard
|
|
-- remote modification uses 2PC even if it is not in an explicit
|
|
-- tx block as multiple nodes involved in the modification
|
|
WITH cte_1 AS (INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *),
|
|
cte_2 AS (INSERT INTO event_responses_no_pkey VALUES (1, 1, 'yes') RETURNING *)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard remote modification followed by a single shard
|
|
-- local modification uses 2PC as multiple nodes involved
|
|
-- in the modification
|
|
BEGIN;
|
|
INSERT INTO event_responses_no_pkey VALUES (1, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 2 | yes
|
|
(1 row)
|
|
|
|
INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard remote modification followed by a single shard
|
|
-- local modification uses 2PC even if it is not in an explicit
|
|
-- tx block
|
|
WITH cte_1 AS (INSERT INTO event_responses_no_pkey VALUES (1, 1, 'yes') RETURNING *),
|
|
cte_2 AS (INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard local SELECT command without transaction block does not set the
|
|
-- internal state for 2PC
|
|
WITH cte_1 AS (SELECT * FROM event_responses_no_pkey WHERE event_id = 2)
|
|
SELECT coordinated_transaction_should_use_2PC() FROM cte_1;
|
|
ERROR: The transaction is not a coordinated transaction
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- two local SELECT commands without transaction block does not set the internal 2PC state
|
|
-- and does not use remotely
|
|
WITH cte_1 AS (SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2),
|
|
cte_2 AS (SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2)
|
|
SELECT count(*) FROM cte_1, cte_2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- two local SELECT commands without transaction block does not set the internal 2PC state
|
|
-- and does not use remotely
|
|
BEGIN;
|
|
SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
9
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
9
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- a local SELECT followed by a remote SELECT does not require to
|
|
-- use actual 2PC
|
|
BEGIN;
|
|
SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
9
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM event_responses_no_pkey;
|
|
count
|
|
---------------------------------------------------------------------
|
|
13
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard local SELECT followed by a single shard
|
|
-- remote modification does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
BEGIN;
|
|
SELECT * FROM event_responses_no_pkey WHERE event_id = 2;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
2 | 2 | yes
|
|
(9 rows)
|
|
|
|
INSERT INTO event_responses_no_pkey VALUES (1, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 2 | yes
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard local SELECT followed by a single shard
|
|
-- remote modification does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
WITH cte_1 AS (SELECT * FROM event_responses_no_pkey WHERE event_id = 2),
|
|
cte_2 AS (INSERT INTO event_responses_no_pkey VALUES (1, 1, 'yes') RETURNING *)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard remote modification followed by a single shard
|
|
-- local SELECT does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
BEGIN;
|
|
INSERT INTO event_responses_no_pkey VALUES (1, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 2 | yes
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
9
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard remote modification followed by a single shard
|
|
-- local SELECT does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
WITH cte_1 AS (INSERT INTO event_responses_no_pkey VALUES (1, 1, 'yes') RETURNING *),
|
|
cte_2 AS (SELECT * FROM event_responses_no_pkey WHERE event_id = 2)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- multi shard local SELECT command without transaction block does not set the
|
|
-- internal state for 2PC
|
|
WITH cte_1 AS (SELECT count(*) FROM event_responses_no_pkey)
|
|
SELECT coordinated_transaction_should_use_2PC() FROM cte_1;
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- two multi-shard SELECT commands without transaction block does not set the internal 2PC state
|
|
-- and does not use remotely
|
|
WITH cte_1 AS (SELECT count(*) FROM event_responses_no_pkey),
|
|
cte_2 AS (SELECT count(*) FROM event_responses_no_pkey)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- two multi-shard SELECT commands without transaction block does not set the internal 2PC state
|
|
-- and does not use remotely
|
|
BEGIN;
|
|
SELECT count(*) FROM event_responses_no_pkey;
|
|
count
|
|
---------------------------------------------------------------------
|
|
17
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM event_responses_no_pkey;
|
|
count
|
|
---------------------------------------------------------------------
|
|
17
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- multi-shard shard SELECT followed by a single shard
|
|
-- remote modification does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
BEGIN;
|
|
SELECT count(*) FROM event_responses_no_pkey;
|
|
count
|
|
---------------------------------------------------------------------
|
|
17
|
|
(1 row)
|
|
|
|
INSERT INTO event_responses_no_pkey VALUES (1, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 2 | yes
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- multi shard SELECT followed by a single shard
|
|
-- remote single shard modification does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
WITH cte_1 AS (SELECT count(*) FROM event_responses_no_pkey),
|
|
cte_2 AS (INSERT INTO event_responses_no_pkey VALUES (1, 1, 'yes') RETURNING *)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard remote modification followed by a multi shard
|
|
-- SELECT does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
BEGIN;
|
|
INSERT INTO event_responses_no_pkey VALUES (1, 2, 'yes') RETURNING *;
|
|
event_id | user_id | response
|
|
---------------------------------------------------------------------
|
|
1 | 2 | yes
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM event_responses_no_pkey;
|
|
count
|
|
---------------------------------------------------------------------
|
|
20
|
|
(1 row)
|
|
|
|
SELECT coordinated_transaction_should_use_2PC();
|
|
coordinated_transaction_should_use_2pc
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard remote modification followed by a multi shard
|
|
-- SELECT does not use 2PC, because only a single
|
|
-- machine involved in the modification
|
|
WITH cte_1 AS (INSERT INTO event_responses_no_pkey VALUES (1, 1, 'yes') RETURNING *),
|
|
cte_2 AS (SELECT count(*) FROM event_responses_no_pkey)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
f
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- single shard local modification followed by remote multi-shard
|
|
-- modification uses 2PC as multiple nodes are involved in modifications
|
|
WITH cte_1 AS (INSERT INTO event_responses_no_pkey VALUES (2, 2, 'yes') RETURNING *),
|
|
cte_2 AS (UPDATE event_responses_no_pkey SET user_id = 1000 RETURNING *)
|
|
SELECT bool_or(coordinated_transaction_should_use_2PC()) FROM cte_1, cte_2;
|
|
bool_or
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- a local SELECT followed by a remote multi-shard UPDATE requires to
|
|
-- use actual 2PC as multiple nodes are involved in modifications
|
|
BEGIN;
|
|
SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
10
|
|
(1 row)
|
|
|
|
UPDATE event_responses_no_pkey SET user_id = 1;
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- a local SELECT followed by a remote single-shard UPDATE does not require to
|
|
-- use actual 2PC. This is because a single node is involved in modification
|
|
BEGIN;
|
|
SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
10
|
|
(1 row)
|
|
|
|
UPDATE event_responses_no_pkey SET user_id = 1 WHERE event_id = 1;
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- a remote single-shard UPDATE followed by a local single shard SELECT
|
|
-- does not require to use actual 2PC. This is because a single node
|
|
-- is involved in modification
|
|
BEGIN;
|
|
UPDATE event_responses_no_pkey SET user_id = 1 WHERE event_id = 1;
|
|
SELECT count(*) FROM event_responses_no_pkey WHERE event_id = 2;
|
|
count
|
|
---------------------------------------------------------------------
|
|
10
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
\c - - - :master_port
|
|
SET search_path TO local_shard_execution;
|
|
-- verify the local_hostname guc is used for local executions that should connect to the
|
|
-- local host
|
|
ALTER SYSTEM SET citus.local_hostname TO 'foobar';
|
|
SELECT pg_reload_conf();
|
|
pg_reload_conf
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT pg_sleep(0.1); -- wait to make sure the config has changed before running the GUC
|
|
pg_sleep
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SET citus.enable_local_execution TO false; -- force a connection to the dummy placements
|
|
-- run queries that use dummy placements for local execution
|
|
SELECT * FROM event_responses WHERE FALSE;
|
|
ERROR: connection to the remote node postgres@foobar:57636 failed with the following error: could not translate host name "foobar" to address: <system specific error>
|
|
WITH cte_1 AS (SELECT * FROM event_responses LIMIT 1) SELECT count(*) FROM cte_1;
|
|
ERROR: connection to the remote node postgres@foobar:57636 failed with the following error: could not translate host name "foobar" to address: <system specific error>
|
|
ALTER SYSTEM RESET citus.local_hostname;
|
|
SELECT pg_reload_conf();
|
|
pg_reload_conf
|
|
---------------------------------------------------------------------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT pg_sleep(.1); -- wait to make sure the config has changed before running the GUC
|
|
pg_sleep
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SET client_min_messages TO ERROR;
|
|
SET search_path TO public;
|
|
DROP SCHEMA local_shard_execution CASCADE;
|