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citus/src/test/regress/expected/single_node.out

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CREATE SCHEMA single_node;
SET search_path TO single_node;
SET citus.shard_count TO 4;
SET citus.shard_replication_factor TO 1;
SET citus.next_shard_id TO 90630500;
SET citus.replication_model TO 'streaming';
-- adding the coordinator as inactive is disallowed
SELECT 1 FROM master_add_inactive_node('localhost', :master_port, groupid => 0);
ERROR: coordinator node cannot be added as inactive node
-- idempotently add node to allow this test to run without add_coordinator
SET client_min_messages TO WARNING;
SELECT 1 FROM citus_set_coordinator_host('localhost', :master_port);
?column?
---------------------------------------------------------------------
1
(1 row)
-- coordinator cannot be disabled
SELECT 1 FROM master_disable_node('localhost', :master_port);
ERROR: Disabling localhost:xxxxx failed
DETAIL: cannot change "isactive" field of the coordinator node
RESET client_min_messages;
SELECT 1 FROM master_remove_node('localhost', :master_port);
?column?
---------------------------------------------------------------------
1
(1 row)
SELECT count(*) FROM pg_dist_node;
count
---------------------------------------------------------------------
0
(1 row)
-- there are no workers now, but we should still be able to create Citus tables
CREATE TABLE ref(x int, y int);
SELECT create_reference_table('ref');
create_reference_table
---------------------------------------------------------------------
(1 row)
SELECT groupid, nodename, nodeport, isactive, shouldhaveshards, hasmetadata, metadatasynced FROM pg_dist_node;
groupid | nodename | nodeport | isactive | shouldhaveshards | hasmetadata | metadatasynced
---------------------------------------------------------------------
0 | localhost | 57636 | t | t | t | t
(1 row)
DROP TABLE ref;
-- remove the coordinator to try again with create_reference_table
SELECT master_remove_node(nodename, nodeport) FROM pg_dist_node WHERE groupid = 0;
master_remove_node
---------------------------------------------------------------------
(1 row)
CREATE TABLE loc(x int, y int);
SELECT citus_add_local_table_to_metadata('loc');
citus_add_local_table_to_metadata
---------------------------------------------------------------------
(1 row)
SELECT groupid, nodename, nodeport, isactive, shouldhaveshards, hasmetadata, metadatasynced FROM pg_dist_node;
groupid | nodename | nodeport | isactive | shouldhaveshards | hasmetadata | metadatasynced
---------------------------------------------------------------------
0 | localhost | 57636 | t | t | t | t
(1 row)
DROP TABLE loc;
-- remove the coordinator to try again with create_distributed_table
SELECT master_remove_node(nodename, nodeport) FROM pg_dist_node WHERE groupid = 0;
master_remove_node
---------------------------------------------------------------------
(1 row)
CREATE TABLE test(x int, y int);
SELECT create_distributed_table('test','x');
create_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT groupid, nodename, nodeport, isactive, shouldhaveshards, hasmetadata, metadatasynced FROM pg_dist_node;
groupid | nodename | nodeport | isactive | shouldhaveshards | hasmetadata | metadatasynced
---------------------------------------------------------------------
0 | localhost | 57636 | t | t | t | t
(1 row)
-- cannot add workers with specific IP as long as I have a placeholder coordinator record
SELECT 1 FROM master_add_node('127.0.0.1', :worker_1_port);
ERROR: cannot add a worker node when the coordinator hostname is set to localhost
DETAIL: Worker nodes need to be able to connect to the coordinator to transfer data.
HINT: Use SELECT citus_set_coordinator_host('<hostname>') to configure the coordinator hostname
-- adding localhost workers is ok
SELECT 1 FROM master_add_node('localhost', :worker_1_port);
NOTICE: shards are still on the coordinator after adding the new node
HINT: Use SELECT rebalance_table_shards(); to balance shards data between workers and coordinator or SELECT citus_drain_node('localhost',57636); to permanently move shards away from the coordinator.
?column?
---------------------------------------------------------------------
1
(1 row)
SELECT 1 FROM master_remove_node('localhost', :worker_1_port);
?column?
---------------------------------------------------------------------
1
(1 row)
-- set the coordinator host to something different than localhost
SELECT 1 FROM citus_set_coordinator_host('127.0.0.1');
?column?
---------------------------------------------------------------------
1
(1 row)
-- adding workers with specific IP is ok now
SELECT 1 FROM master_add_node('127.0.0.1', :worker_1_port);
NOTICE: shards are still on the coordinator after adding the new node
HINT: Use SELECT rebalance_table_shards(); to balance shards data between workers and coordinator or SELECT citus_drain_node('127.0.0.1',57636); to permanently move shards away from the coordinator.
?column?
---------------------------------------------------------------------
1
(1 row)
SELECT 1 FROM master_remove_node('127.0.0.1', :worker_1_port);
?column?
---------------------------------------------------------------------
1
(1 row)
-- set the coordinator host back to localhost for the remainder of tests
SELECT 1 FROM citus_set_coordinator_host('localhost');
?column?
---------------------------------------------------------------------
1
(1 row)
-- should have shards setting should not really matter for a single node
SELECT 1 FROM master_set_node_property('localhost', :master_port, 'shouldhaveshards', true);
?column?
---------------------------------------------------------------------
1
(1 row)
CREATE TYPE new_type AS (n int, m text);
CREATE TABLE test_2(x int, y int, z new_type);
SELECT create_distributed_table('test_2','x');
create_distributed_table
---------------------------------------------------------------------
(1 row)
CREATE TABLE ref(a int, b int);
SELECT create_reference_table('ref');
create_reference_table
---------------------------------------------------------------------
(1 row)
CREATE TABLE local(c int, d int);
CREATE TABLE public.another_schema_table(a int, b int);
SELECT create_distributed_table('public.another_schema_table', 'a');
create_distributed_table
---------------------------------------------------------------------
(1 row)
CREATE TABLE non_binary_copy_test (key int PRIMARY KEY, value new_type);
SELECT create_distributed_table('non_binary_copy_test', 'key');
create_distributed_table
---------------------------------------------------------------------
(1 row)
INSERT INTO non_binary_copy_test SELECT i, (i, 'citus9.5')::new_type FROM generate_series(0,1000)i;
-- Confirm the basics work
INSERT INTO test VALUES (1, 2), (3, 4), (5, 6), (2, 7), (4, 5);
SELECT * FROM test WHERE x = 1;
x | y
---------------------------------------------------------------------
1 | 2
(1 row)
SELECT count(*) FROM test;
count
---------------------------------------------------------------------
5
(1 row)
SELECT * FROM test ORDER BY x;
x | y
---------------------------------------------------------------------
1 | 2
2 | 7
3 | 4
4 | 5
5 | 6
(5 rows)
UPDATE test SET y = y + 1 RETURNING *;
x | y
---------------------------------------------------------------------
1 | 3
2 | 8
3 | 5
4 | 6
5 | 7
(5 rows)
WITH cte_1 AS (UPDATE test SET y = y - 1 RETURNING *) SELECT * FROM cte_1 ORDER BY 1,2;
x | y
---------------------------------------------------------------------
1 | 2
2 | 7
3 | 4
4 | 5
5 | 6
(5 rows)
-- Test upsert with constraint
CREATE TABLE upsert_test
(
part_key int UNIQUE,
other_col int,
third_col int
);
-- distribute the table
SELECT create_distributed_table('upsert_test', 'part_key');
create_distributed_table
---------------------------------------------------------------------
(1 row)
-- do a regular insert
INSERT INTO upsert_test (part_key, other_col) VALUES (1, 1), (2, 2) RETURNING *;
part_key | other_col | third_col
---------------------------------------------------------------------
1 | 1 |
2 | 2 |
(2 rows)
SET citus.log_remote_commands to true;
-- observe that there is a conflict and the following query does nothing
INSERT INTO upsert_test (part_key, other_col) VALUES (1, 1) ON CONFLICT DO NOTHING RETURNING *;
NOTICE: executing the command locally: INSERT INTO single_node.upsert_test_90630519 AS citus_table_alias (part_key, other_col) VALUES (1, 1) ON CONFLICT DO NOTHING RETURNING part_key, other_col, third_col
part_key | other_col | third_col
---------------------------------------------------------------------
(0 rows)
-- same as the above with different syntax
INSERT INTO upsert_test (part_key, other_col) VALUES (1, 1) ON CONFLICT (part_key) DO NOTHING RETURNING *;
NOTICE: executing the command locally: INSERT INTO single_node.upsert_test_90630519 AS citus_table_alias (part_key, other_col) VALUES (1, 1) ON CONFLICT(part_key) DO NOTHING RETURNING part_key, other_col, third_col
part_key | other_col | third_col
---------------------------------------------------------------------
(0 rows)
-- again the same query with another syntax
INSERT INTO upsert_test (part_key, other_col) VALUES (1, 1) ON CONFLICT ON CONSTRAINT upsert_test_part_key_key DO NOTHING RETURNING *;
NOTICE: executing the command locally: INSERT INTO single_node.upsert_test_90630519 AS citus_table_alias (part_key, other_col) VALUES (1, 1) ON CONFLICT ON CONSTRAINT upsert_test_part_key_key_90630519 DO NOTHING RETURNING part_key, other_col, third_col
part_key | other_col | third_col
---------------------------------------------------------------------
(0 rows)
BEGIN;
-- force local execution
SELECT count(*) FROM upsert_test WHERE part_key = 1;
NOTICE: executing the command locally: SELECT count(*) AS count FROM single_node.upsert_test_90630519 upsert_test WHERE (part_key OPERATOR(pg_catalog.=) 1)
count
---------------------------------------------------------------------
1
(1 row)
SET citus.log_remote_commands to false;
-- multi-shard pushdown query that goes through local execution
INSERT INTO upsert_test (part_key, other_col) SELECT part_key, other_col FROM upsert_test ON CONFLICT ON CONSTRAINT upsert_test_part_key_key DO NOTHING RETURNING *;
part_key | other_col | third_col
---------------------------------------------------------------------
(0 rows)
-- multi-shard pull-to-coordinator query that goes through local execution
INSERT INTO upsert_test (part_key, other_col) SELECT part_key, other_col FROM upsert_test LIMIT 100 ON CONFLICT ON CONSTRAINT upsert_test_part_key_key DO NOTHING RETURNING *;
part_key | other_col | third_col
---------------------------------------------------------------------
(0 rows)
COMMIT;
-- to test citus local tables
select undistribute_table('upsert_test');
NOTICE: creating a new table for single_node.upsert_test
NOTICE: moving the data of single_node.upsert_test
NOTICE: dropping the old single_node.upsert_test
NOTICE: renaming the new table to single_node.upsert_test
undistribute_table
---------------------------------------------------------------------
(1 row)
-- create citus local table
select citus_add_local_table_to_metadata('upsert_test');
citus_add_local_table_to_metadata
---------------------------------------------------------------------
(1 row)
-- test the constraint with local execution
INSERT INTO upsert_test (part_key, other_col) VALUES (1, 1) ON CONFLICT ON CONSTRAINT upsert_test_part_key_key DO NOTHING RETURNING *;
part_key | other_col | third_col
---------------------------------------------------------------------
(0 rows)
DROP TABLE upsert_test;
CREATE SCHEMA "Quoed.Schema";
SET search_path TO "Quoed.Schema";
CREATE TABLE "long_constraint_upsert\_test"
(
part_key int,
other_col int,
third_col int,
CONSTRAINT "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" UNIQUE (part_key)
);
NOTICE: identifier "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" will be truncated to "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted "
-- distribute the table and create shards
SELECT create_distributed_table('"long_constraint_upsert\_test"', 'part_key');
create_distributed_table
---------------------------------------------------------------------
(1 row)
INSERT INTO "long_constraint_upsert\_test" (part_key, other_col) VALUES (1, 1) ON CONFLICT ON CONSTRAINT "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" DO NOTHING RETURNING *;
NOTICE: identifier "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" will be truncated to "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted "
part_key | other_col | third_col
---------------------------------------------------------------------
1 | 1 |
(1 row)
ALTER TABLE "long_constraint_upsert\_test" RENAME TO simple_table_name;
INSERT INTO simple_table_name (part_key, other_col) VALUES (1, 1) ON CONFLICT ON CONSTRAINT "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" DO NOTHING RETURNING *;
NOTICE: identifier "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" will be truncated to "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted "
part_key | other_col | third_col
---------------------------------------------------------------------
(0 rows)
-- this is currently not supported, but once we support
-- make sure that the following query also works fine
ALTER TABLE simple_table_name RENAME CONSTRAINT "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" TO simple_constraint_name;
NOTICE: identifier "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted \aconstraint" will be truncated to "looo oooo ooooo ooooooooooooooooo oooooooo oooooooo ng quoted "
ERROR: renaming constraints belonging to distributed tables is currently unsupported
--INSERT INTO simple_table_name (part_key, other_col) VALUES (1, 1) ON CONFLICT ON CONSTRAINT simple_constraint_name DO NOTHING RETURNING *;
SET search_path TO single_node;
DROP SCHEMA "Quoed.Schema" CASCADE;
NOTICE: drop cascades to 5 other objects
DETAIL: drop cascades to table "Quoed.Schema".simple_table_name
drop cascades to table "Quoed.Schema".simple_table_name_90630524
drop cascades to table "Quoed.Schema".simple_table_name_90630525
drop cascades to table "Quoed.Schema".simple_table_name_90630526
drop cascades to table "Quoed.Schema".simple_table_name_90630527
-- test partitioned index creation with long name
CREATE TABLE test_index_creation1
(
tenant_id integer NOT NULL,
timeperiod timestamp without time zone NOT NULL,
field1 integer NOT NULL,
inserted_utc timestamp without time zone NOT NULL DEFAULT now(),
PRIMARY KEY(tenant_id, timeperiod)
) PARTITION BY RANGE (timeperiod);
CREATE TABLE test_index_creation1_p2020_09_26
PARTITION OF test_index_creation1 FOR VALUES FROM ('2020-09-26 00:00:00') TO ('2020-09-27 00:00:00');
CREATE TABLE test_index_creation1_p2020_09_27
PARTITION OF test_index_creation1 FOR VALUES FROM ('2020-09-27 00:00:00') TO ('2020-09-28 00:00:00');
select create_distributed_table('test_index_creation1', 'tenant_id');
create_distributed_table
---------------------------------------------------------------------
(1 row)
-- should be able to create indexes with INCLUDE/WHERE
CREATE INDEX ix_test_index_creation5 ON test_index_creation1
USING btree(tenant_id, timeperiod)
INCLUDE (field1) WHERE (tenant_id = 100);
-- test if indexes are created
SELECT 1 AS created WHERE EXISTS(SELECT * FROM pg_indexes WHERE indexname LIKE '%test_index_creation%');
created
---------------------------------------------------------------------
1
(1 row)
-- test citus size functions in transaction with modification
CREATE TABLE test_citus_size_func (a int);
SELECT create_distributed_table('test_citus_size_func', 'a');
create_distributed_table
---------------------------------------------------------------------
(1 row)
INSERT INTO test_citus_size_func VALUES(1), (2);
BEGIN;
-- DDL with citus_table_size
ALTER TABLE test_citus_size_func ADD COLUMN newcol INT;
SELECT citus_table_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- DDL with citus_relation_size
ALTER TABLE test_citus_size_func ADD COLUMN newcol INT;
SELECT citus_relation_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- DDL with citus_total_relation_size
ALTER TABLE test_citus_size_func ADD COLUMN newcol INT;
SELECT citus_total_relation_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- single shard insert with citus_table_size
INSERT INTO test_citus_size_func VALUES (3);
SELECT citus_table_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- multi shard modification with citus_table_size
INSERT INTO test_citus_size_func SELECT * FROM test_citus_size_func;
SELECT citus_table_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- single shard insert with citus_relation_size
INSERT INTO test_citus_size_func VALUES (3);
SELECT citus_relation_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- multi shard modification with citus_relation_size
INSERT INTO test_citus_size_func SELECT * FROM test_citus_size_func;
SELECT citus_relation_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- single shard insert with citus_total_relation_size
INSERT INTO test_citus_size_func VALUES (3);
SELECT citus_total_relation_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
BEGIN;
-- multi shard modification with citus_total_relation_size
INSERT INTO test_citus_size_func SELECT * FROM test_citus_size_func;
SELECT citus_total_relation_size('test_citus_size_func');
ERROR: citus size functions cannot be called in transaction blocks which contain multi-shard data modifications
ROLLBACK;
-- we should be able to limit intermediate results
BEGIN;
SET LOCAL citus.max_intermediate_result_size TO 0;
WITH cte_1 AS (SELECT * FROM test OFFSET 0) SELECT * FROM cte_1;
ERROR: the intermediate result size exceeds citus.max_intermediate_result_size (currently 0 kB)
DETAIL: Citus restricts the size of intermediate results of complex subqueries and CTEs to avoid accidentally pulling large result sets into once place.
HINT: To run the current query, set citus.max_intermediate_result_size to a higher value or -1 to disable.
ROLLBACK;
-- the first cte (cte_1) does not exceed the limit
-- but the second (cte_2) exceeds, so we error out
BEGIN;
SET LOCAL citus.max_intermediate_result_size TO '1kB';
INSERT INTO test SELECT i,i from generate_series(0,1000)i;
-- only pulls 1 row, should not hit the limit
WITH cte_1 AS (SELECT * FROM test LIMIT 1) SELECT count(*) FROM cte_1;
count
---------------------------------------------------------------------
1
(1 row)
-- cte_1 only pulls 1 row, but cte_2 all rows
WITH cte_1 AS (SELECT * FROM test LIMIT 1),
cte_2 AS (SELECT * FROM test OFFSET 0)
SELECT count(*) FROM cte_1, cte_2;
ERROR: the intermediate result size exceeds citus.max_intermediate_result_size (currently 1 kB)
DETAIL: Citus restricts the size of intermediate results of complex subqueries and CTEs to avoid accidentally pulling large result sets into once place.
HINT: To run the current query, set citus.max_intermediate_result_size to a higher value or -1 to disable.
ROLLBACK;
-- single shard and multi-shard delete
-- inside a transaction block
BEGIN;
DELETE FROM test WHERE y = 5;
INSERT INTO test VALUES (4, 5);
DELETE FROM test WHERE x = 1;
INSERT INTO test VALUES (1, 2);
COMMIT;
CREATE INDEX single_node_i1 ON test(x);
CREATE INDEX single_node_i2 ON test(x,y);
REINDEX SCHEMA single_node;
-- PG 11 does not support CONCURRENTLY
-- and we do not want to add a new output
-- file just for that. Enable the test
-- once we remove PG_VERSION_11
--REINDEX SCHEMA CONCURRENTLY single_node;
-- keep one of the indexes
-- drop w/wout tx blocks
BEGIN;
DROP INDEX single_node_i2;
ROLLBACK;
DROP INDEX single_node_i2;
-- change the schema w/wout TX block
BEGIN;
ALTER TABLE public.another_schema_table SET SCHEMA single_node;
ROLLBACK;
ALTER TABLE public.another_schema_table SET SCHEMA single_node;
BEGIN;
TRUNCATE test;
SELECT * FROM test;
x | y
---------------------------------------------------------------------
(0 rows)
ROLLBACK;
VACUUM test;
VACUUM test, test_2;
VACUUM ref, test;
VACUUM ANALYZE test(x);
ANALYZE ref;
ANALYZE test_2;
VACUUM local;
VACUUM local, ref, test, test_2;
VACUUM FULL test, ref;
BEGIN;
ALTER TABLE test ADD COLUMN z INT DEFAULT 66;
SELECT count(*) FROM test WHERE z = 66;
count
---------------------------------------------------------------------
5
(1 row)
ROLLBACK;
-- explain analyze should work on a single node
EXPLAIN (COSTS FALSE, ANALYZE TRUE, TIMING FALSE, SUMMARY FALSE)
SELECT * FROM test;
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (Citus Adaptive) (actual rows=5 loops=1)
Task Count: 4
Tuple data received from nodes: 10 bytes
Tasks Shown: One of 4
-> Task
Tuple data received from node: 4 bytes
Node: host=localhost port=xxxxx dbname=regression
-> Seq Scan on test_90630502 test (actual rows=2 loops=1)
(8 rows)
-- common utility command
SELECT pg_size_pretty(citus_relation_size('test'::regclass));
pg_size_pretty
---------------------------------------------------------------------
24 kB
(1 row)
-- basic view queries
CREATE VIEW single_node_view AS
SELECT count(*) as cnt FROM test t1 JOIN test t2 USING (x);
SELECT * FROM single_node_view;
cnt
---------------------------------------------------------------------
5
(1 row)
SELECT * FROM single_node_view, test WHERE test.x = single_node_view.cnt;
cnt | x | y
---------------------------------------------------------------------
5 | 5 | 6
(1 row)
-- copy in/out
BEGIN;
COPY test(x) FROM PROGRAM 'seq 32';
SELECT count(*) FROM test;
count
---------------------------------------------------------------------
37
(1 row)
COPY (SELECT count(DISTINCT x) FROM test) TO STDOUT;
32
INSERT INTO test SELECT i,i FROM generate_series(0,100)i;
ROLLBACK;
-- alter table inside a tx block
BEGIN;
ALTER TABLE test ADD COLUMN z single_node.new_type;
INSERT INTO test VALUES (99, 100, (1, 'onder')::new_type) RETURNING *;
x | y | z
---------------------------------------------------------------------
99 | 100 | (1,onder)
(1 row)
ROLLBACK;
-- prepared statements with custom types
PREPARE single_node_prepare_p1(int, int, new_type) AS
INSERT INTO test_2 VALUES ($1, $2, $3);
EXECUTE single_node_prepare_p1(1, 1, (95, 'citus9.5')::new_type);
EXECUTE single_node_prepare_p1(2 ,2, (94, 'citus9.4')::new_type);
EXECUTE single_node_prepare_p1(3 ,2, (93, 'citus9.3')::new_type);
EXECUTE single_node_prepare_p1(4 ,2, (92, 'citus9.2')::new_type);
EXECUTE single_node_prepare_p1(5 ,2, (91, 'citus9.1')::new_type);
EXECUTE single_node_prepare_p1(6 ,2, (90, 'citus9.0')::new_type);
PREPARE use_local_query_cache(int) AS SELECT count(*) FROM test_2 WHERE x = $1;
EXECUTE use_local_query_cache(1);
count
---------------------------------------------------------------------
1
(1 row)
EXECUTE use_local_query_cache(1);
count
---------------------------------------------------------------------
1
(1 row)
EXECUTE use_local_query_cache(1);
count
---------------------------------------------------------------------
1
(1 row)
EXECUTE use_local_query_cache(1);
count
---------------------------------------------------------------------
1
(1 row)
EXECUTE use_local_query_cache(1);
count
---------------------------------------------------------------------
1
(1 row)
SET client_min_messages TO DEBUG2;
-- the 6th execution will go through the planner
-- the 7th execution will skip the planner as it uses the cache
EXECUTE use_local_query_cache(1);
DEBUG: Deferred pruning for a fast-path router query
DEBUG: Creating router plan
count
---------------------------------------------------------------------
1
(1 row)
EXECUTE use_local_query_cache(1);
count
---------------------------------------------------------------------
1
(1 row)
RESET client_min_messages;
-- partitioned table should be fine, adding for completeness
CREATE TABLE collections_list (
key bigint,
ts timestamptz DEFAULT now(),
collection_id integer,
value numeric,
PRIMARY KEY(key, collection_id)
) PARTITION BY LIST (collection_id );
SELECT create_distributed_table('collections_list', 'key');
create_distributed_table
---------------------------------------------------------------------
(1 row)
CREATE TABLE collections_list_0
PARTITION OF collections_list (key, ts, collection_id, value)
FOR VALUES IN ( 0 );
CREATE TABLE collections_list_1
PARTITION OF collections_list (key, ts, collection_id, value)
FOR VALUES IN ( 1 );
INSERT INTO collections_list SELECT i, '2011-01-01', i % 2, i * i FROM generate_series(0, 100) i;
SELECT count(*) FROM collections_list WHERE key < 10 AND collection_id = 1;
count
---------------------------------------------------------------------
5
(1 row)
SELECT count(*) FROM collections_list_0 WHERE key < 10 AND collection_id = 1;
count
---------------------------------------------------------------------
0
(1 row)
SELECT count(*) FROM collections_list_1 WHERE key = 11;
count
---------------------------------------------------------------------
1
(1 row)
ALTER TABLE collections_list DROP COLUMN ts;
SELECT * FROM collections_list, collections_list_0 WHERE collections_list.key=collections_list_0.key ORDER BY 1 DESC,2 DESC,3 DESC,4 DESC LIMIT 1;
key | collection_id | value | key | collection_id | value
---------------------------------------------------------------------
100 | 0 | 10000 | 100 | 0 | 10000
(1 row)
-- test hash distribution using INSERT with generate_series() function
CREATE OR REPLACE FUNCTION part_hashint4_noop(value int4, seed int8)
RETURNS int8 AS $$
SELECT value + seed;
$$ LANGUAGE SQL IMMUTABLE;
CREATE OPERATOR CLASS part_test_int4_ops
FOR TYPE int4
USING HASH AS
operator 1 =,
function 2 part_hashint4_noop(int4, int8);
CREATE TABLE hash_parted (
a int,
b int
) PARTITION BY HASH (a part_test_int4_ops);
CREATE TABLE hpart0 PARTITION OF hash_parted FOR VALUES WITH (modulus 4, remainder 0);
CREATE TABLE hpart1 PARTITION OF hash_parted FOR VALUES WITH (modulus 4, remainder 1);
CREATE TABLE hpart2 PARTITION OF hash_parted FOR VALUES WITH (modulus 4, remainder 2);
CREATE TABLE hpart3 PARTITION OF hash_parted FOR VALUES WITH (modulus 4, remainder 3);
SELECT create_distributed_table('hash_parted ', 'a');
create_distributed_table
---------------------------------------------------------------------
(1 row)
INSERT INTO hash_parted VALUES (1, generate_series(1, 10));
SELECT * FROM hash_parted ORDER BY 1, 2;
a | b
---------------------------------------------------------------------
1 | 1
1 | 2
1 | 3
1 | 4
1 | 5
1 | 6
1 | 7
1 | 8
1 | 9
1 | 10
(10 rows)
ALTER TABLE hash_parted DETACH PARTITION hpart0;
ALTER TABLE hash_parted DETACH PARTITION hpart1;
ALTER TABLE hash_parted DETACH PARTITION hpart2;
ALTER TABLE hash_parted DETACH PARTITION hpart3;
-- test range partition without creating partitions and inserting with generate_series()
-- should error out even in plain PG since no partition of relation "parent_tab" is found for row
-- in Citus it errors out because it fails to evaluate partition key in insert
CREATE TABLE parent_tab (id int) PARTITION BY RANGE (id);
SELECT create_distributed_table('parent_tab', 'id');
create_distributed_table
---------------------------------------------------------------------
(1 row)
INSERT INTO parent_tab VALUES (generate_series(0, 3));
ERROR: failed to evaluate partition key in insert
HINT: try using constant values for partition column
-- now it should work
CREATE TABLE parent_tab_1_2 PARTITION OF parent_tab FOR VALUES FROM (1) to (2);
ALTER TABLE parent_tab ADD COLUMN b int;
INSERT INTO parent_tab VALUES (1, generate_series(0, 3));
SELECT * FROM parent_tab ORDER BY 1, 2;
id | b
---------------------------------------------------------------------
1 | 0
1 | 1
1 | 2
1 | 3
(4 rows)
-- make sure that parallel accesses are good
SET citus.force_max_query_parallelization TO ON;
SELECT * FROM test_2 ORDER BY 1 DESC;
x | y | z
---------------------------------------------------------------------
6 | 2 | (90,citus9.0)
5 | 2 | (91,citus9.1)
4 | 2 | (92,citus9.2)
3 | 2 | (93,citus9.3)
2 | 2 | (94,citus9.4)
1 | 1 | (95,citus9.5)
(6 rows)
DELETE FROM test_2 WHERE y = 1000 RETURNING *;
x | y | z
---------------------------------------------------------------------
(0 rows)
RESET citus.force_max_query_parallelization ;
BEGIN;
INSERT INTO test_2 VALUES (7 ,2, (83, 'citus8.3')::new_type);
SAVEPOINT s1;
INSERT INTO test_2 VALUES (9 ,1, (82, 'citus8.2')::new_type);
SAVEPOINT s2;
ROLLBACK TO SAVEPOINT s1;
SELECT * FROM test_2 WHERE z = (83, 'citus8.3')::new_type OR z = (82, 'citus8.2')::new_type;
x | y | z
---------------------------------------------------------------------
7 | 2 | (83,citus8.3)
(1 row)
RELEASE SAVEPOINT s1;
COMMIT;
SELECT * FROM test_2 WHERE z = (83, 'citus8.3')::new_type OR z = (82, 'citus8.2')::new_type;
x | y | z
---------------------------------------------------------------------
7 | 2 | (83,citus8.3)
(1 row)
-- final query is only intermediate result
-- we want PG 11/12/13 behave consistently, the CTEs should be MATERIALIZED
SET citus.enable_cte_inlining TO FALSE;
WITH cte_1 AS (SELECT * FROM test_2) SELECT * FROM cte_1 ORDER BY 1,2;
x | y | z
---------------------------------------------------------------------
1 | 1 | (95,citus9.5)
2 | 2 | (94,citus9.4)
3 | 2 | (93,citus9.3)
4 | 2 | (92,citus9.2)
5 | 2 | (91,citus9.1)
6 | 2 | (90,citus9.0)
7 | 2 | (83,citus8.3)
(7 rows)
-- final query is router query
WITH cte_1 AS (SELECT * FROM test_2) SELECT * FROM cte_1, test_2 WHERE test_2.x = cte_1.x AND test_2.x = 7 ORDER BY 1,2;
x | y | z | x | y | z
---------------------------------------------------------------------
7 | 2 | (83,citus8.3) | 7 | 2 | (83,citus8.3)
(1 row)
-- final query is a distributed query
WITH cte_1 AS (SELECT * FROM test_2) SELECT * FROM cte_1, test_2 WHERE test_2.x = cte_1.x AND test_2.y != 2 ORDER BY 1,2;
x | y | z | x | y | z
---------------------------------------------------------------------
1 | 1 | (95,citus9.5) | 1 | 1 | (95,citus9.5)
(1 row)
-- query pushdown should work
SELECT
*
FROM
(SELECT x, count(*) FROM test_2 GROUP BY x) as foo,
(SELECT x, count(*) FROM test_2 GROUP BY x) as bar
WHERE
foo.x = bar.x
ORDER BY 1 DESC, 2 DESC, 3 DESC, 4 DESC
LIMIT 1;
x | count | x | count
---------------------------------------------------------------------
7 | 1 | 7 | 1
(1 row)
-- make sure that foreign keys work fine
ALTER TABLE test_2 ADD CONSTRAINT first_pkey PRIMARY KEY (x);
ALTER TABLE test ADD CONSTRAINT foreign_key FOREIGN KEY (x) REFERENCES test_2(x) ON DELETE CASCADE;
-- show that delete on test_2 cascades to test
SELECT * FROM test WHERE x = 5;
x | y
---------------------------------------------------------------------
5 | 6
(1 row)
DELETE FROM test_2 WHERE x = 5;
SELECT * FROM test WHERE x = 5;
x | y
---------------------------------------------------------------------
(0 rows)
INSERT INTO test_2 VALUES (5 ,2, (91, 'citus9.1')::new_type);
INSERT INTO test VALUES (5, 6);
INSERT INTO ref VALUES (1, 2), (5, 6), (7, 8);
SELECT count(*) FROM ref;
count
---------------------------------------------------------------------
3
(1 row)
SELECT * FROM ref ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
5 | 6
7 | 8
(3 rows)
SELECT * FROM test, ref WHERE x = a ORDER BY x;
x | y | a | b
---------------------------------------------------------------------
1 | 2 | 1 | 2
5 | 6 | 5 | 6
(2 rows)
INSERT INTO local VALUES (1, 2), (3, 4), (7, 8);
SELECT count(*) FROM local;
count
---------------------------------------------------------------------
3
(1 row)
SELECT * FROM local ORDER BY c;
c | d
---------------------------------------------------------------------
1 | 2
3 | 4
7 | 8
(3 rows)
SELECT * FROM ref, local WHERE a = c ORDER BY a;
a | b | c | d
---------------------------------------------------------------------
1 | 2 | 1 | 2
7 | 8 | 7 | 8
(2 rows)
-- Check repartion joins are supported
SET citus.enable_repartition_joins TO ON;
SELECT * FROM test t1, test t2 WHERE t1.x = t2.y ORDER BY t1.x;
x | y | x | y
---------------------------------------------------------------------
2 | 7 | 1 | 2
4 | 5 | 3 | 4
5 | 6 | 4 | 5
(3 rows)
SET citus.enable_single_hash_repartition_joins TO ON;
SELECT * FROM test t1, test t2 WHERE t1.x = t2.y ORDER BY t1.x;
x | y | x | y
---------------------------------------------------------------------
2 | 7 | 1 | 2
4 | 5 | 3 | 4
5 | 6 | 4 | 5
(3 rows)
SET search_path TO public;
SET citus.enable_single_hash_repartition_joins TO OFF;
SELECT * FROM single_node.test t1, single_node.test t2 WHERE t1.x = t2.y ORDER BY t1.x;
x | y | x | y
---------------------------------------------------------------------
2 | 7 | 1 | 2
4 | 5 | 3 | 4
5 | 6 | 4 | 5
(3 rows)
SET citus.enable_single_hash_repartition_joins TO ON;
SELECT * FROM single_node.test t1, single_node.test t2 WHERE t1.x = t2.y ORDER BY t1.x;
x | y | x | y
---------------------------------------------------------------------
2 | 7 | 1 | 2
4 | 5 | 3 | 4
5 | 6 | 4 | 5
(3 rows)
SET search_path TO single_node;
SET citus.task_assignment_policy TO 'round-robin';
SET citus.enable_single_hash_repartition_joins TO ON;
SELECT * FROM test t1, test t2 WHERE t1.x = t2.y ORDER BY t1.x;
x | y | x | y
---------------------------------------------------------------------
2 | 7 | 1 | 2
4 | 5 | 3 | 4
5 | 6 | 4 | 5
(3 rows)
SET citus.task_assignment_policy TO 'greedy';
SELECT * FROM test t1, test t2 WHERE t1.x = t2.y ORDER BY t1.x;
x | y | x | y
---------------------------------------------------------------------
2 | 7 | 1 | 2
4 | 5 | 3 | 4
5 | 6 | 4 | 5
(3 rows)
SET citus.task_assignment_policy TO 'first-replica';
SELECT * FROM test t1, test t2 WHERE t1.x = t2.y ORDER BY t1.x;
x | y | x | y
---------------------------------------------------------------------
2 | 7 | 1 | 2
4 | 5 | 3 | 4
5 | 6 | 4 | 5
(3 rows)
RESET citus.enable_repartition_joins;
RESET citus.enable_single_hash_repartition_joins;
-- INSERT SELECT router
BEGIN;
INSERT INTO test(x, y) SELECT x, y FROM test WHERE x = 1;
SELECT count(*) from test;
count
---------------------------------------------------------------------
6
(1 row)
ROLLBACK;
-- INSERT SELECT pushdown
BEGIN;
INSERT INTO test(x, y) SELECT x, y FROM test;
SELECT count(*) from test;
count
---------------------------------------------------------------------
10
(1 row)
ROLLBACK;
-- INSERT SELECT analytical query
BEGIN;
INSERT INTO test(x, y) SELECT count(x), max(y) FROM test;
SELECT count(*) from test;
count
---------------------------------------------------------------------
6
(1 row)
ROLLBACK;
-- INSERT SELECT repartition
BEGIN;
INSERT INTO test(x, y) SELECT y, x FROM test;
SELECT count(*) from test;
count
---------------------------------------------------------------------
10
(1 row)
ROLLBACK;
-- INSERT SELECT from reference table into distributed
BEGIN;
INSERT INTO test(x, y) SELECT a, b FROM ref;
SELECT count(*) from test;
count
---------------------------------------------------------------------
8
(1 row)
ROLLBACK;
-- INSERT SELECT from local table into distributed
BEGIN;
INSERT INTO test(x, y) SELECT c, d FROM local;
SELECT count(*) from test;
count
---------------------------------------------------------------------
8
(1 row)
ROLLBACK;
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO ref(a, b) SELECT x, y FROM test;
SELECT count(*) from ref;
count
---------------------------------------------------------------------
8
(1 row)
ROLLBACK;
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO ref(a, b) SELECT c, d FROM local;
SELECT count(*) from ref;
count
---------------------------------------------------------------------
6
(1 row)
ROLLBACK;
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO local(c, d) SELECT x, y FROM test;
SELECT count(*) from local;
count
---------------------------------------------------------------------
8
(1 row)
ROLLBACK;
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO local(c, d) SELECT a, b FROM ref;
SELECT count(*) from local;
count
---------------------------------------------------------------------
6
(1 row)
ROLLBACK;
-- Confirm that dummy placements work
SELECT count(*) FROM test WHERE false;
count
---------------------------------------------------------------------
0
(1 row)
SELECT count(*) FROM test WHERE false GROUP BY GROUPING SETS (x,y);
count
---------------------------------------------------------------------
(0 rows)
-- Confirm that they work with round-robin task assignment policy
SET citus.task_assignment_policy TO 'round-robin';
SELECT count(*) FROM test WHERE false;
count
---------------------------------------------------------------------
0
(1 row)
SELECT count(*) FROM test WHERE false GROUP BY GROUPING SETS (x,y);
count
---------------------------------------------------------------------
(0 rows)
RESET citus.task_assignment_policy;
SELECT count(*) FROM test;
count
---------------------------------------------------------------------
5
(1 row)
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO ref(a, b) SELECT x, y FROM test;
SELECT count(*) from ref;
count
---------------------------------------------------------------------
8
(1 row)
ROLLBACK;
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO ref(a, b) SELECT c, d FROM local;
SELECT count(*) from ref;
count
---------------------------------------------------------------------
6
(1 row)
ROLLBACK;
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO local(c, d) SELECT x, y FROM test;
SELECT count(*) from local;
count
---------------------------------------------------------------------
8
(1 row)
ROLLBACK;
-- INSERT SELECT from distributed table to local table
BEGIN;
INSERT INTO local(c, d) SELECT a, b FROM ref;
SELECT count(*) from local;
count
---------------------------------------------------------------------
6
(1 row)
ROLLBACK;
-- query fails on the shards should be handled
-- nicely
SELECT x/0 FROM test;
ERROR: division by zero
CONTEXT: while executing command on localhost:xxxxx
-- Add "fake" pg_dist_transaction records and run recovery
-- to show that it is recovered
-- Temporarily disable automatic 2PC recovery
ALTER SYSTEM SET citus.recover_2pc_interval TO -1;
SELECT pg_reload_conf();
pg_reload_conf
---------------------------------------------------------------------
t
(1 row)
BEGIN;
CREATE TABLE should_commit (value int);
PREPARE TRANSACTION 'citus_0_should_commit';
-- zero is the coordinator's group id, so we can hard code it
INSERT INTO pg_dist_transaction VALUES (0, 'citus_0_should_commit');
SELECT recover_prepared_transactions();
recover_prepared_transactions
---------------------------------------------------------------------
1
(1 row)
-- the table should be seen
SELECT * FROM should_commit;
value
---------------------------------------------------------------------
(0 rows)
-- set the original back
ALTER SYSTEM RESET citus.recover_2pc_interval;
SELECT pg_reload_conf();
pg_reload_conf
---------------------------------------------------------------------
t
(1 row)
RESET citus.task_executor_type;
-- make sure undistribute table works fine
ALTER TABLE test DROP CONSTRAINT foreign_key;
SELECT undistribute_table('test_2');
NOTICE: creating a new table for single_node.test_2
NOTICE: moving the data of single_node.test_2
NOTICE: dropping the old single_node.test_2
NOTICE: renaming the new table to single_node.test_2
undistribute_table
---------------------------------------------------------------------
(1 row)
SELECT * FROM pg_dist_partition WHERE logicalrelid = 'test_2'::regclass;
logicalrelid | partmethod | partkey | colocationid | repmodel
---------------------------------------------------------------------
(0 rows)
CREATE TABLE reference_table_1 (col_1 INT UNIQUE, col_2 INT UNIQUE, UNIQUE (col_2, col_1));
SELECT create_reference_table('reference_table_1');
create_reference_table
---------------------------------------------------------------------
(1 row)
CREATE TABLE distributed_table_1 (col_1 INT UNIQUE);
SELECT create_distributed_table('distributed_table_1', 'col_1');
create_distributed_table
---------------------------------------------------------------------
(1 row)
CREATE TABLE citus_local_table_1 (col_1 INT UNIQUE);
SELECT citus_add_local_table_to_metadata('citus_local_table_1');
citus_add_local_table_to_metadata
---------------------------------------------------------------------
(1 row)
CREATE TABLE partitioned_table_1 (col_1 INT UNIQUE, col_2 INT) PARTITION BY RANGE (col_1);
CREATE TABLE partitioned_table_1_100_200 PARTITION OF partitioned_table_1 FOR VALUES FROM (100) TO (200);
CREATE TABLE partitioned_table_1_200_300 PARTITION OF partitioned_table_1 FOR VALUES FROM (200) TO (300);
SELECT create_distributed_table('partitioned_table_1', 'col_1');
create_distributed_table
---------------------------------------------------------------------
(1 row)
ALTER TABLE citus_local_table_1 ADD CONSTRAINT fkey_1 FOREIGN KEY (col_1) REFERENCES reference_table_1(col_2);
ALTER TABLE reference_table_1 ADD CONSTRAINT fkey_2 FOREIGN KEY (col_2) REFERENCES reference_table_1(col_1);
ALTER TABLE distributed_table_1 ADD CONSTRAINT fkey_3 FOREIGN KEY (col_1) REFERENCES reference_table_1(col_1);
ALTER TABLE citus_local_table_1 ADD CONSTRAINT fkey_4 FOREIGN KEY (col_1) REFERENCES reference_table_1(col_2);
ALTER TABLE partitioned_table_1 ADD CONSTRAINT fkey_5 FOREIGN KEY (col_1) REFERENCES reference_table_1(col_2);
SELECT undistribute_table('partitioned_table_1', cascade_via_foreign_keys=>true);
NOTICE: converting the partitions of single_node.partitioned_table_1
NOTICE: creating a new table for single_node.partitioned_table_1_100_200
NOTICE: moving the data of single_node.partitioned_table_1_100_200
NOTICE: dropping the old single_node.partitioned_table_1_100_200
NOTICE: renaming the new table to single_node.partitioned_table_1_100_200
NOTICE: creating a new table for single_node.partitioned_table_1_200_300
NOTICE: moving the data of single_node.partitioned_table_1_200_300
NOTICE: dropping the old single_node.partitioned_table_1_200_300
NOTICE: renaming the new table to single_node.partitioned_table_1_200_300
NOTICE: creating a new table for single_node.partitioned_table_1
NOTICE: dropping the old single_node.partitioned_table_1
NOTICE: renaming the new table to single_node.partitioned_table_1
NOTICE: creating a new table for single_node.reference_table_1
NOTICE: moving the data of single_node.reference_table_1
NOTICE: dropping the old single_node.reference_table_1
NOTICE: renaming the new table to single_node.reference_table_1
NOTICE: creating a new table for single_node.distributed_table_1
NOTICE: moving the data of single_node.distributed_table_1
NOTICE: dropping the old single_node.distributed_table_1
NOTICE: renaming the new table to single_node.distributed_table_1
NOTICE: creating a new table for single_node.citus_local_table_1
NOTICE: moving the data of single_node.citus_local_table_1
NOTICE: dropping the old single_node.citus_local_table_1
NOTICE: renaming the new table to single_node.citus_local_table_1
undistribute_table
---------------------------------------------------------------------
(1 row)
CREATE TABLE local_table_1 (col_1 INT UNIQUE);
CREATE TABLE local_table_2 (col_1 INT UNIQUE);
CREATE TABLE local_table_3 (col_1 INT UNIQUE);
ALTER TABLE local_table_2 ADD CONSTRAINT fkey_6 FOREIGN KEY (col_1) REFERENCES local_table_1(col_1);
ALTER TABLE local_table_3 ADD CONSTRAINT fkey_7 FOREIGN KEY (col_1) REFERENCES local_table_1(col_1);
ALTER TABLE local_table_1 ADD CONSTRAINT fkey_8 FOREIGN KEY (col_1) REFERENCES local_table_1(col_1);
SELECT citus_add_local_table_to_metadata('local_table_2', cascade_via_foreign_keys=>true);
citus_add_local_table_to_metadata
---------------------------------------------------------------------
(1 row)
CREATE PROCEDURE call_delegation(x int) LANGUAGE plpgsql AS $$
BEGIN
INSERT INTO test (x) VALUES ($1);
END;$$;
SELECT * FROM pg_dist_node;
nodeid | groupid | nodename | nodeport | noderack | hasmetadata | isactive | noderole | nodecluster | metadatasynced | shouldhaveshards
---------------------------------------------------------------------
4 | 0 | localhost | 57636 | default | t | t | primary | default | t | t
(1 row)
SELECT create_distributed_function('call_delegation(int)', '$1', 'test');
create_distributed_function
---------------------------------------------------------------------
(1 row)
CREATE FUNCTION function_delegation(int) RETURNS void AS $$
BEGIN
UPDATE test SET y = y + 1 WHERE x < $1;
END;
$$ LANGUAGE plpgsql;
SELECT create_distributed_function('function_delegation(int)', '$1', 'test');
create_distributed_function
---------------------------------------------------------------------
(1 row)
SET client_min_messages TO DEBUG1;
CALL call_delegation(1);
DEBUG: not pushing down procedure to the same node
SELECT function_delegation(1);
DEBUG: not pushing down function to the same node
function_delegation
---------------------------------------------------------------------
(1 row)
SET client_min_messages TO WARNING;
DROP TABLE test CASCADE;
CREATE OR REPLACE FUNCTION pg_catalog.get_all_active_client_backend_count()
RETURNS bigint
LANGUAGE C STRICT
AS 'citus', $$get_all_active_client_backend_count$$;
-- set the cached connections to zero
-- and execute a distributed query so that
-- we end up with zero cached connections afterwards
ALTER SYSTEM SET citus.max_cached_conns_per_worker TO 0;
SELECT pg_reload_conf();
pg_reload_conf
---------------------------------------------------------------------
t
(1 row)
-- disable deadlock detection and re-trigger 2PC recovery
-- once more when citus.max_cached_conns_per_worker is zero
-- so that we can be sure that the connections established for
-- maintanince daemon is closed properly.
-- this is to prevent random failures in the tests (otherwise, we
-- might see connections established for this operations)
ALTER SYSTEM SET citus.distributed_deadlock_detection_factor TO -1;
ALTER SYSTEM SET citus.recover_2pc_interval TO '1ms';
SELECT pg_reload_conf();
pg_reload_conf
---------------------------------------------------------------------
t
(1 row)
SELECT pg_sleep(0.1);
pg_sleep
---------------------------------------------------------------------
(1 row)
-- now that last 2PC recovery is done, we're good to disable it
ALTER SYSTEM SET citus.recover_2pc_interval TO '-1';
SELECT pg_reload_conf();
pg_reload_conf
---------------------------------------------------------------------
t
(1 row)
-- test alter_distributed_table UDF
CREATE TABLE adt_table (a INT, b INT);
CREATE TABLE adt_col (a INT UNIQUE, b INT);
CREATE TABLE adt_ref (a INT REFERENCES adt_col(a));
SELECT create_distributed_table('adt_table', 'a', colocate_with:='none');
create_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT create_distributed_table('adt_col', 'a', colocate_with:='adt_table');
create_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT create_distributed_table('adt_ref', 'a', colocate_with:='adt_table');
create_distributed_table
---------------------------------------------------------------------
(1 row)
INSERT INTO adt_table VALUES (1, 2), (3, 4), (5, 6);
INSERT INTO adt_col VALUES (3, 4), (5, 6), (7, 8);
INSERT INTO adt_ref VALUES (3), (5);
SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text LIKE 'adt%';
table_name | citus_table_type | distribution_column | shard_count
---------------------------------------------------------------------
adt_col | distributed | a | 4
adt_ref | distributed | a | 4
adt_table | distributed | a | 4
(3 rows)
SELECT STRING_AGG(table_name::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables WHERE table_name::text LIKE 'adt%' GROUP BY colocation_id ORDER BY 1;
Colocation Groups
---------------------------------------------------------------------
adt_col, adt_ref, adt_table
(1 row)
SELECT conrelid::regclass::text AS "Referencing Table", pg_get_constraintdef(oid, true) AS "Definition" FROM pg_constraint
WHERE (conrelid::regclass::text = 'adt_col' OR confrelid::regclass::text = 'adt_col') ORDER BY 1;
Referencing Table | Definition
---------------------------------------------------------------------
adt_col | UNIQUE (a)
adt_ref | FOREIGN KEY (a) REFERENCES adt_col(a)
(2 rows)
SELECT alter_distributed_table('adt_table', shard_count:=6, cascade_to_colocated:=true);
alter_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text LIKE 'adt%';
table_name | citus_table_type | distribution_column | shard_count
---------------------------------------------------------------------
adt_col | distributed | a | 6
adt_ref | distributed | a | 6
adt_table | distributed | a | 6
(3 rows)
SELECT STRING_AGG(table_name::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables WHERE table_name::text LIKE 'adt%' GROUP BY colocation_id ORDER BY 1;
Colocation Groups
---------------------------------------------------------------------
adt_col, adt_ref, adt_table
(1 row)
SELECT conrelid::regclass::text AS "Referencing Table", pg_get_constraintdef(oid, true) AS "Definition" FROM pg_constraint
WHERE (conrelid::regclass::text = 'adt_col' OR confrelid::regclass::text = 'adt_col') ORDER BY 1;
Referencing Table | Definition
---------------------------------------------------------------------
adt_col | UNIQUE (a)
adt_ref | FOREIGN KEY (a) REFERENCES adt_col(a)
(2 rows)
SELECT alter_distributed_table('adt_table', distribution_column:='b', colocate_with:='none');
alter_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text LIKE 'adt%';
table_name | citus_table_type | distribution_column | shard_count
---------------------------------------------------------------------
adt_col | distributed | a | 6
adt_ref | distributed | a | 6
adt_table | distributed | b | 6
(3 rows)
SELECT STRING_AGG(table_name::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables WHERE table_name::text LIKE 'adt%' GROUP BY colocation_id ORDER BY 1;
Colocation Groups
---------------------------------------------------------------------
adt_col, adt_ref
adt_table
(2 rows)
SELECT conrelid::regclass::text AS "Referencing Table", pg_get_constraintdef(oid, true) AS "Definition" FROM pg_constraint
WHERE (conrelid::regclass::text = 'adt_col' OR confrelid::regclass::text = 'adt_col') ORDER BY 1;
Referencing Table | Definition
---------------------------------------------------------------------
adt_col | UNIQUE (a)
adt_ref | FOREIGN KEY (a) REFERENCES adt_col(a)
(2 rows)
SELECT * FROM adt_table ORDER BY 1;
a | b
---------------------------------------------------------------------
1 | 2
3 | 4
5 | 6
(3 rows)
SELECT * FROM adt_col ORDER BY 1;
a | b
---------------------------------------------------------------------
3 | 4
5 | 6
7 | 8
(3 rows)
SELECT * FROM adt_ref ORDER BY 1;
a
---------------------------------------------------------------------
3
5
(2 rows)
-- make sure that COPY (e.g., INSERT .. SELECT) and
-- alter_distributed_table works in the same TX
BEGIN;
SET LOCAL citus.enable_local_execution=OFF;
INSERT INTO adt_table SELECT x, x+1 FROM generate_series(1, 1000) x;
SELECT alter_distributed_table('adt_table', distribution_column:='a');
alter_distributed_table
---------------------------------------------------------------------
(1 row)
ROLLBACK;
BEGIN;
INSERT INTO adt_table SELECT x, x+1 FROM generate_series(1, 1000) x;
SELECT alter_distributed_table('adt_table', distribution_column:='a');
alter_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT COUNT(*) FROM adt_table;
count
---------------------------------------------------------------------
1003
(1 row)
END;
SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text = 'adt_table';
table_name | citus_table_type | distribution_column | shard_count
---------------------------------------------------------------------
adt_table | distributed | a | 6
(1 row)
\c - - - :master_port
-- sometimes Postgres is a little slow to terminate the backends
-- even if PGFinish is sent. So, to prevent any flaky tests, sleep
SELECT pg_sleep(0.1);
pg_sleep
---------------------------------------------------------------------
(1 row)
-- since max_cached_conns_per_worker == 0 at this point, the
-- backend(s) that execute on the shards will be terminated
-- so show that there is only a single client backend,
-- which is actually the backend that executes here
SET search_path TO single_node;
SELECT count(*) from should_commit;
count
---------------------------------------------------------------------
0
(1 row)
SELECT pg_catalog.get_all_active_client_backend_count();
get_all_active_client_backend_count
---------------------------------------------------------------------
1
(1 row)
BEGIN;
SET LOCAL citus.shard_count TO 32;
SET LOCAL citus.force_max_query_parallelization TO ON;
SET LOCAL citus.enable_local_execution TO false;
CREATE TABLE test (a int);
SET citus.shard_replication_factor TO 1;
SELECT create_distributed_table('test', 'a');
create_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT count(*) FROM test;
count
---------------------------------------------------------------------
0
(1 row)
-- now, we should have additional 32 connections
SELECT pg_catalog.get_all_active_client_backend_count();
get_all_active_client_backend_count
---------------------------------------------------------------------
33
(1 row)
ROLLBACK;
\c - - - :master_port
SET search_path TO single_node;
-- simulate that even if there is no connection slots
-- to connect, Citus can switch to local execution
SET citus.force_max_query_parallelization TO false;
SET citus.log_remote_commands TO ON;
ALTER SYSTEM SET citus.local_shared_pool_size TO -1;
SELECT pg_reload_conf();
pg_reload_conf
---------------------------------------------------------------------
t
(1 row)
SELECT pg_sleep(0.1);
pg_sleep
---------------------------------------------------------------------
(1 row)
SET citus.executor_slow_start_interval TO 10;
SELECT count(*) from another_schema_table;
NOTICE: executing the command locally: SELECT count(*) AS count FROM single_node.another_schema_table_90630511 another_schema_table WHERE true
NOTICE: executing the command locally: SELECT count(*) AS count FROM single_node.another_schema_table_90630512 another_schema_table WHERE true
NOTICE: executing the command locally: SELECT count(*) AS count FROM single_node.another_schema_table_90630513 another_schema_table WHERE true
NOTICE: executing the command locally: SELECT count(*) AS count FROM single_node.another_schema_table_90630514 another_schema_table WHERE true
count
---------------------------------------------------------------------
0
(1 row)
UPDATE another_schema_table SET b = b;
NOTICE: executing the command locally: UPDATE single_node.another_schema_table_90630511 another_schema_table SET b = b
NOTICE: executing the command locally: UPDATE single_node.another_schema_table_90630512 another_schema_table SET b = b
NOTICE: executing the command locally: UPDATE single_node.another_schema_table_90630513 another_schema_table SET b = b
NOTICE: executing the command locally: UPDATE single_node.another_schema_table_90630514 another_schema_table SET b = b
-- INSERT .. SELECT pushdown and INSERT .. SELECT via repartitioning
-- not that we ignore INSERT .. SELECT via coordinator as it relies on
-- COPY command
INSERT INTO another_schema_table SELECT * FROM another_schema_table;
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630511 AS citus_table_alias (a, b) SELECT a, b FROM single_node.another_schema_table_90630511 another_schema_table WHERE (a IS NOT NULL)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630512 AS citus_table_alias (a, b) SELECT a, b FROM single_node.another_schema_table_90630512 another_schema_table WHERE (a IS NOT NULL)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630513 AS citus_table_alias (a, b) SELECT a, b FROM single_node.another_schema_table_90630513 another_schema_table WHERE (a IS NOT NULL)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630514 AS citus_table_alias (a, b) SELECT a, b FROM single_node.another_schema_table_90630514 another_schema_table WHERE (a IS NOT NULL)
INSERT INTO another_schema_table SELECT b::int, a::int FROM another_schema_table;
NOTICE: executing the command locally: SELECT partition_index, 'repartitioned_results_xxxxx_from_90630511_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630511_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630511 another_schema_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_90630512_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630512_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630512 another_schema_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_90630513_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630513_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630513 another_schema_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_90630514_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630514_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630514 another_schema_table WHERE true',0,'hash','{-2147483648,-1073741824,0,1073741824}'::text[],'{-1073741825,-1,1073741823,2147483647}'::text[],true) WHERE rows_written > 0
-- multi-row INSERTs
INSERT INTO another_schema_table VALUES (1,1), (2,2), (3,3), (4,4), (5,5),(6,6),(7,7);
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630511 AS citus_table_alias (a, b) VALUES (1,1), (5,5)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630512 AS citus_table_alias (a, b) VALUES (3,3), (4,4), (7,7)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630513 AS citus_table_alias (a, b) VALUES (6,6)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630514 AS citus_table_alias (a, b) VALUES (2,2)
-- INSERT..SELECT with re-partitioning when using local execution
BEGIN;
INSERT INTO another_schema_table VALUES (1,100);
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630511 (a, b) VALUES (1, 100)
INSERT INTO another_schema_table VALUES (2,100);
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630514 (a, b) VALUES (2, 100)
INSERT INTO another_schema_table SELECT b::int, a::int FROM another_schema_table;
NOTICE: executing the command locally: SELECT partition_index, 'repartitioned_results_xxxxx_from_90630511_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630511_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630511 another_schema_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_90630512_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630512_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630512 another_schema_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_90630513_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630513_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630513 another_schema_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_90630514_to' || '_' || partition_index::text , rows_written FROM worker_partition_query_result('repartitioned_results_xxxxx_from_90630514_to','SELECT b AS a, a AS b FROM single_node.another_schema_table_90630514 another_schema_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 single_node.another_schema_table_90630511 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_results('{repartitioned_results_xxxxx_from_90630511_to_0}'::text[], 'binary'::citus_copy_format) intermediate_result(a integer, b integer)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630512 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_results('{repartitioned_results_xxxxx_from_90630512_to_1}'::text[], 'binary'::citus_copy_format) intermediate_result(a integer, b integer)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630513 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_results('{repartitioned_results_xxxxx_from_90630511_to_2,repartitioned_results_xxxxx_from_90630513_to_2,repartitioned_results_xxxxx_from_90630514_to_2}'::text[], 'binary'::citus_copy_format) intermediate_result(a integer, b integer)
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630514 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_results('{repartitioned_results_xxxxx_from_90630514_to_3}'::text[], 'binary'::citus_copy_format) intermediate_result(a integer, b integer)
SELECT * FROM another_schema_table WHERE a = 100 ORDER BY b;
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630513 another_schema_table WHERE (a OPERATOR(pg_catalog.=) 100) ORDER BY b
a | b
---------------------------------------------------------------------
100 | 1
100 | 2
(2 rows)
ROLLBACK;
-- intermediate results
WITH cte_1 AS (SELECT * FROM another_schema_table LIMIT 1000)
SELECT count(*) FROM cte_1;
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630511 another_schema_table WHERE true LIMIT '1000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630512 another_schema_table WHERE true LIMIT '1000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630513 another_schema_table WHERE true LIMIT '1000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630514 another_schema_table WHERE true LIMIT '1000'::bigint
NOTICE: executing the command locally: SELECT count(*) AS count FROM (SELECT intermediate_result.a, intermediate_result.b FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer)) cte_1
count
---------------------------------------------------------------------
7
(1 row)
-- this is to get ready for the next tests
TRUNCATE another_schema_table;
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
-- copy can use local execution even if there is no connection available
COPY another_schema_table(a) FROM PROGRAM 'seq 32';
NOTICE: executing the copy locally for shard xxxxx
CONTEXT: COPY another_schema_table, line 1: "1"
NOTICE: executing the copy locally for shard xxxxx
CONTEXT: COPY another_schema_table, line 2: "2"
NOTICE: executing the copy locally for shard xxxxx
CONTEXT: COPY another_schema_table, line 3: "3"
NOTICE: executing the copy locally for shard xxxxx
CONTEXT: COPY another_schema_table, line 6: "6"
-- INSERT .. SELECT with co-located intermediate results
SET citus.log_remote_commands to false;
CREATE UNIQUE INDEX another_schema_table_pk ON another_schema_table(a);
SET citus.log_local_commands to true;
INSERT INTO another_schema_table SELECT * FROM another_schema_table LIMIT 10000 ON CONFLICT(a) DO NOTHING;
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630511 another_schema_table WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630512 another_schema_table WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630513 another_schema_table WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630514 another_schema_table WHERE true LIMIT '10000'::bigint
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630511 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630511'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630512 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630512'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630513 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630513'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630514 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630514'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING
INSERT INTO another_schema_table SELECT * FROM another_schema_table ORDER BY a LIMIT 10 ON CONFLICT(a) DO UPDATE SET b = EXCLUDED.b + 1 RETURNING *;
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630511 another_schema_table WHERE true ORDER BY a LIMIT '10'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630512 another_schema_table WHERE true ORDER BY a LIMIT '10'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630513 another_schema_table WHERE true ORDER BY a LIMIT '10'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630514 another_schema_table WHERE true ORDER BY a LIMIT '10'::bigint
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630511 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630511'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO UPDATE SET b = (excluded.b OPERATOR(pg_catalog.+) 1) RETURNING citus_table_alias.a, citus_table_alias.b
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630512 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630512'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO UPDATE SET b = (excluded.b OPERATOR(pg_catalog.+) 1) RETURNING citus_table_alias.a, citus_table_alias.b
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630513 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630513'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO UPDATE SET b = (excluded.b OPERATOR(pg_catalog.+) 1) RETURNING citus_table_alias.a, citus_table_alias.b
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630514 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630514'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO UPDATE SET b = (excluded.b OPERATOR(pg_catalog.+) 1) RETURNING citus_table_alias.a, citus_table_alias.b
a | b
---------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
(10 rows)
-- INSERT .. SELECT with co-located intermediate result for non-binary input
WITH cte_1 AS
(INSERT INTO non_binary_copy_test SELECT * FROM non_binary_copy_test LIMIT 10000 ON CONFLICT (key) DO UPDATE SET value = (0, 'citus0')::new_type RETURNING value)
SELECT count(*) FROM cte_1;
NOTICE: executing the command locally: SELECT key, value FROM single_node.non_binary_copy_test_90630515 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value FROM single_node.non_binary_copy_test_90630516 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value FROM single_node.non_binary_copy_test_90630517 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value FROM single_node.non_binary_copy_test_90630518 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630515 AS citus_table_alias (key, value) SELECT key, value FROM read_intermediate_result('insert_select_XXX_90630515'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.value
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630516 AS citus_table_alias (key, value) SELECT key, value FROM read_intermediate_result('insert_select_XXX_90630516'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.value
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630517 AS citus_table_alias (key, value) SELECT key, value FROM read_intermediate_result('insert_select_XXX_90630517'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.value
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630518 AS citus_table_alias (key, value) SELECT key, value FROM read_intermediate_result('insert_select_XXX_90630518'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.value
NOTICE: executing the command locally: SELECT count(*) AS count FROM (SELECT intermediate_result.value FROM read_intermediate_result('XXX_1'::text, 'text'::citus_copy_format) intermediate_result(value single_node.new_type)) cte_1
count
---------------------------------------------------------------------
1001
(1 row)
-- test with NULL columns
ALTER TABLE non_binary_copy_test ADD COLUMN z INT;
NOTICE: executing the command locally: SELECT worker_apply_shard_ddl_command (90630515, 'single_node', 'ALTER TABLE non_binary_copy_test ADD COLUMN z INT;')
NOTICE: executing the command locally: SELECT worker_apply_shard_ddl_command (90630516, 'single_node', 'ALTER TABLE non_binary_copy_test ADD COLUMN z INT;')
NOTICE: executing the command locally: SELECT worker_apply_shard_ddl_command (90630517, 'single_node', 'ALTER TABLE non_binary_copy_test ADD COLUMN z INT;')
NOTICE: executing the command locally: SELECT worker_apply_shard_ddl_command (90630518, 'single_node', 'ALTER TABLE non_binary_copy_test ADD COLUMN z INT;')
WITH cte_1 AS
(INSERT INTO non_binary_copy_test SELECT * FROM non_binary_copy_test LIMIT 10000 ON CONFLICT (key) DO UPDATE SET value = (0, 'citus0')::new_type RETURNING z)
SELECT bool_and(z is null) FROM cte_1;
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630515 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630516 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630517 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630518 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630515 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630515'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630516 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630516'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630517 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630517'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630518 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630518'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: SELECT bool_and((z IS NULL)) AS bool_and FROM (SELECT intermediate_result.z FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(z integer)) cte_1
bool_and
---------------------------------------------------------------------
t
(1 row)
-- test with type coersion (int -> text) and also NULL values with coersion
WITH cte_1 AS
(INSERT INTO non_binary_copy_test SELECT * FROM non_binary_copy_test LIMIT 10000 ON CONFLICT (key) DO UPDATE SET value = (0, 'citus0')::new_type RETURNING key, z)
SELECT count(DISTINCT key::text), count(DISTINCT z::text) FROM cte_1;
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630515 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630516 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630517 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630518 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630515 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630515'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.key, citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630516 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630516'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.key, citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630517 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630517'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.key, citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630518 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630518'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.key, citus_table_alias.z
NOTICE: executing the command locally: SELECT count(DISTINCT (key)::text) AS count, count(DISTINCT (z)::text) AS count FROM (SELECT intermediate_result.key, intermediate_result.z FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(key integer, z integer)) cte_1
count | count
---------------------------------------------------------------------
1001 | 0
(1 row)
-- lets flush the copy often to make sure everyhing is fine
SET citus.local_copy_flush_threshold TO 1;
TRUNCATE another_schema_table;
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
NOTICE: executing the command locally: TRUNCATE TABLE single_node.another_schema_table_xxxxx CASCADE
INSERT INTO another_schema_table(a) SELECT i from generate_Series(0,10000)i;
NOTICE: executing the copy locally for shard xxxxx
NOTICE: executing the copy locally for shard xxxxx
NOTICE: executing the copy locally for shard xxxxx
NOTICE: executing the copy locally for shard xxxxx
WITH cte_1 AS
(INSERT INTO another_schema_table SELECT * FROM another_schema_table ORDER BY a LIMIT 10000 ON CONFLICT(a) DO NOTHING RETURNING *)
SELECT count(*) FROM cte_1;
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630511 another_schema_table WHERE true ORDER BY a LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630512 another_schema_table WHERE true ORDER BY a LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630513 another_schema_table WHERE true ORDER BY a LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT a, b FROM single_node.another_schema_table_90630514 another_schema_table WHERE true ORDER BY a LIMIT '10000'::bigint
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630511 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630511'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING RETURNING citus_table_alias.a, citus_table_alias.b
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630512 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630512'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING RETURNING citus_table_alias.a, citus_table_alias.b
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630513 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630513'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING RETURNING citus_table_alias.a, citus_table_alias.b
NOTICE: executing the command locally: INSERT INTO single_node.another_schema_table_90630514 AS citus_table_alias (a, b) SELECT a, b FROM read_intermediate_result('insert_select_XXX_90630514'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer) ON CONFLICT(a) DO NOTHING RETURNING citus_table_alias.a, citus_table_alias.b
NOTICE: executing the command locally: SELECT count(*) AS count FROM (SELECT intermediate_result.a, intermediate_result.b FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(a integer, b integer)) cte_1
count
---------------------------------------------------------------------
0
(1 row)
WITH cte_1 AS
(INSERT INTO non_binary_copy_test SELECT * FROM non_binary_copy_test LIMIT 10000 ON CONFLICT (key) DO UPDATE SET value = (0, 'citus0')::new_type RETURNING z)
SELECT bool_and(z is null) FROM cte_1;
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630515 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630516 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630517 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the command locally: SELECT key, value, z FROM single_node.non_binary_copy_test_90630518 non_binary_copy_test WHERE true LIMIT '10000'::bigint
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the copy locally for colocated file with shard xxxxx
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630515 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630515'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630516 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630516'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630517 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630517'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: INSERT INTO single_node.non_binary_copy_test_90630518 AS citus_table_alias (key, value, z) SELECT key, value, z FROM read_intermediate_result('insert_select_XXX_90630518'::text, 'text'::citus_copy_format) intermediate_result(key integer, value single_node.new_type, z integer) ON CONFLICT(key) DO UPDATE SET value = ROW(0, 'citus0'::text)::single_node.new_type RETURNING citus_table_alias.z
NOTICE: executing the command locally: SELECT bool_and((z IS NULL)) AS bool_and FROM (SELECT intermediate_result.z FROM read_intermediate_result('XXX_1'::text, 'binary'::citus_copy_format) intermediate_result(z integer)) cte_1
bool_and
---------------------------------------------------------------------
t
(1 row)
RESET citus.local_copy_flush_threshold;
-- if the local execution is disabled, we cannot failover to
-- local execution and the queries would fail
SET citus.enable_local_execution TO false;
SELECT count(*) from another_schema_table;
ERROR: could not establish any connections to the node localhost:xxxxx when local execution is also disabled.
HINT: Enable local execution via SET citus.enable_local_execution TO true;
UPDATE another_schema_table SET b = b;
ERROR: could not establish any connections to the node localhost:xxxxx when local execution is also disabled.
HINT: Enable local execution via SET citus.enable_local_execution TO true;
INSERT INTO another_schema_table SELECT * FROM another_schema_table;
ERROR: could not establish any connections to the node localhost:xxxxx when local execution is also disabled.
HINT: Enable local execution via SET citus.enable_local_execution TO true;
INSERT INTO another_schema_table SELECT b::int, a::int FROM another_schema_table;
ERROR: could not establish any connections to the node localhost:xxxxx when local execution is also disabled.
HINT: Enable local execution via SET citus.enable_local_execution TO true;
WITH cte_1 AS (SELECT * FROM another_schema_table LIMIT 1000)
SELECT count(*) FROM cte_1;
ERROR: could not establish any connections to the node localhost:xxxxx when local execution is also disabled.
HINT: Enable local execution via SET citus.enable_local_execution TO true;
INSERT INTO another_schema_table VALUES (1,1), (2,2), (3,3), (4,4), (5,5),(6,6),(7,7);
ERROR: could not establish any connections to the node localhost:xxxxx when local execution is also disabled.
HINT: Enable local execution via SET citus.enable_local_execution TO true;
-- copy fails if local execution is disabled and there is no connection slot
COPY another_schema_table(a) FROM PROGRAM 'seq 32';
ERROR: could not find an available connection
HINT: Set citus.max_shared_pool_size TO -1 to let COPY command finish
CONTEXT: COPY another_schema_table, line 1: "1"
-- set the values to originals back
ALTER SYSTEM RESET citus.max_cached_conns_per_worker;
ALTER SYSTEM RESET citus.distributed_deadlock_detection_factor;
ALTER SYSTEM RESET citus.recover_2pc_interval;
ALTER SYSTEM RESET citus.distributed_deadlock_detection_factor;
ALTER SYSTEM RESET citus.local_shared_pool_size;
SELECT pg_reload_conf();
pg_reload_conf
---------------------------------------------------------------------
t
(1 row)
-- suppress notices
SET client_min_messages TO error;
-- cannot remove coordinator since a reference table exists on coordinator and no other worker nodes are added
SELECT 1 FROM master_remove_node('localhost', :master_port);
ERROR: cannot remove the last worker node because there are reference tables and it would cause data loss on reference tables
HINT: To proceed, either drop the reference tables or use undistribute_table() function to convert them to local tables
-- Cleanup
DROP SCHEMA single_node CASCADE;
-- Remove the coordinator again
SELECT 1 FROM master_remove_node('localhost', :master_port);
?column?
---------------------------------------------------------------------
1
(1 row)
-- restart nodeid sequence so that multi_cluster_management still has the same
-- nodeids
ALTER SEQUENCE pg_dist_node_nodeid_seq RESTART 1;
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