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

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--
-- MULTI_EXTENSION
--
-- Tests around extension creation / upgrades
--
-- It'd be nice to script generation of this file, but alas, that's
-- not done yet.
-- differentiate the output file for pg11 and versions above, with regards to objects
-- created per citus version depending on the postgres version. Upgrade tests verify the
-- objects are added in citus_finish_pg_upgrade()
SHOW server_version \gset
SELECT substring(:'server_version', '\d+')::int > 11 AS version_above_eleven;
version_above_eleven
---------------------------------------------------------------------
t
(1 row)
SET citus.next_shard_id TO 580000;
CREATE SCHEMA multi_extension;
SELECT $definition$
CREATE OR REPLACE FUNCTION test.maintenance_worker()
RETURNS pg_stat_activity
LANGUAGE plpgsql
AS $$
DECLARE
activity record;
BEGIN
DO 'BEGIN END'; -- Force maintenance daemon to start
-- we don't want to wait forever; loop will exit after 20 seconds
FOR i IN 1 .. 200 LOOP
PERFORM pg_stat_clear_snapshot();
SELECT * INTO activity FROM pg_stat_activity
WHERE application_name = 'Citus Maintenance Daemon' AND datname = current_database();
IF activity.pid IS NOT NULL THEN
RETURN activity;
ELSE
PERFORM pg_sleep(0.1);
END IF ;
END LOOP;
-- fail if we reach the end of this loop
raise 'Waited too long for maintenance daemon to start';
END;
$$;
$definition$ create_function_test_maintenance_worker
\gset
CREATE TABLE multi_extension.prev_objects(description text);
CREATE TABLE multi_extension.extension_diff(previous_object text COLLATE "C",
current_object text COLLATE "C");
CREATE FUNCTION multi_extension.print_extension_changes()
RETURNS TABLE(previous_object text, current_object text)
AS $func$
BEGIN
SET LOCAL search_path TO multi_extension;
TRUNCATE TABLE extension_diff;
CREATE TABLE current_objects AS
SELECT pg_catalog.pg_describe_object(classid, objid, 0)
|| ' ' ||
coalesce(pg_catalog.pg_get_function_result(objid), '') AS description
FROM pg_catalog.pg_depend, pg_catalog.pg_extension e
WHERE refclassid = 'pg_catalog.pg_extension'::pg_catalog.regclass
AND refobjid = e.oid
AND deptype = 'e'
AND e.extname='citus';
INSERT INTO extension_diff
SELECT p.description previous_object, c.description current_object
FROM current_objects c FULL JOIN prev_objects p
ON p.description = c.description
WHERE p.description is null OR c.description is null;
DROP TABLE prev_objects;
ALTER TABLE current_objects RENAME TO prev_objects;
RETURN QUERY SELECT * FROM extension_diff ORDER BY 1, 2;
END
$func$ LANGUAGE plpgsql;
CREATE SCHEMA test;
:create_function_test_maintenance_worker
-- check maintenance daemon is started
SELECT datname, current_database(),
usename, (SELECT extowner::regrole::text FROM pg_extension WHERE extname = 'citus')
FROM test.maintenance_worker();
datname | current_database | usename | extowner
---------------------------------------------------------------------
regression | regression | postgres | postgres
(1 row)
-- ensure no unexpected objects were created outside pg_catalog
SELECT pgio.type, pgio.identity
FROM pg_depend AS pgd,
pg_extension AS pge,
LATERAL pg_identify_object(pgd.classid, pgd.objid, pgd.objsubid) AS pgio
WHERE pgd.refclassid = 'pg_extension'::regclass AND
pgd.refobjid = pge.oid AND
pge.extname = 'citus' AND
pgio.schema NOT IN ('pg_catalog', 'citus', 'citus_internal', 'test', 'columnar')
ORDER BY 1, 2;
type | identity
---------------------------------------------------------------------
view | public.citus_tables
(1 row)
-- DROP EXTENSION pre-created by the regression suite
DROP EXTENSION citus;
\c
-- these tests switch between citus versions and call ddl's that require pg_dist_object to be created
SET citus.enable_object_propagation TO 'false';
SET citus.enable_version_checks TO 'false';
CREATE EXTENSION citus VERSION '8.0-1';
ALTER EXTENSION citus UPDATE TO '8.0-2';
ALTER EXTENSION citus UPDATE TO '8.0-3';
ALTER EXTENSION citus UPDATE TO '8.0-4';
ALTER EXTENSION citus UPDATE TO '8.0-5';
ALTER EXTENSION citus UPDATE TO '8.0-6';
ALTER EXTENSION citus UPDATE TO '8.0-7';
ALTER EXTENSION citus UPDATE TO '8.0-8';
ALTER EXTENSION citus UPDATE TO '8.0-9';
ALTER EXTENSION citus UPDATE TO '8.0-10';
ALTER EXTENSION citus UPDATE TO '8.0-11';
ALTER EXTENSION citus UPDATE TO '8.0-12';
ALTER EXTENSION citus UPDATE TO '8.0-13';
ALTER EXTENSION citus UPDATE TO '8.1-1';
ALTER EXTENSION citus UPDATE TO '8.2-1';
ALTER EXTENSION citus UPDATE TO '8.2-2';
ALTER EXTENSION citus UPDATE TO '8.2-3';
ALTER EXTENSION citus UPDATE TO '8.2-4';
ALTER EXTENSION citus UPDATE TO '8.3-1';
ALTER EXTENSION citus UPDATE TO '9.0-1';
ALTER EXTENSION citus UPDATE TO '9.0-2';
ALTER EXTENSION citus UPDATE TO '9.1-1';
ALTER EXTENSION citus UPDATE TO '9.2-1';
ALTER EXTENSION citus UPDATE TO '9.2-2';
-- Snapshot of state at 9.2-2
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
| event trigger citus_cascade_to_partition
| function alter_role_if_exists(text,text) boolean
| function any_value(anyelement) anyelement
| function any_value_agg(anyelement,anyelement) anyelement
| function array_cat_agg(anyarray) anycompatiblearray
| function assign_distributed_transaction_id(integer,bigint,timestamp with time zone) void
| function authinfo_valid(text) boolean
| function broadcast_intermediate_result(text,text) bigint
| function check_distributed_deadlocks() boolean
| function citus_add_rebalance_strategy(name,regproc,regproc,regproc,real,real) void
| function citus_blocking_pids(integer) integer[]
| function citus_create_restore_point(text) pg_lsn
| function citus_dist_stat_activity() SETOF record
| function citus_drop_trigger() event_trigger
| function citus_executor_name(integer) text
| function citus_extradata_container(internal) void
| function citus_finish_pg_upgrade() void
| function citus_internal.find_groupid_for_node(text,integer) integer
| function citus_internal.pg_dist_node_trigger_func() trigger
| function citus_internal.pg_dist_rebalance_strategy_enterprise_check() trigger
| function citus_internal.pg_dist_rebalance_strategy_trigger_func() trigger
| function citus_internal.pg_dist_shard_placement_trigger_func() trigger
| function citus_internal.refresh_isolation_tester_prepared_statement() void
| function citus_internal.replace_isolation_tester_func() void
| function citus_internal.restore_isolation_tester_func() void
| function citus_isolation_test_session_is_blocked(integer,integer[]) boolean
| function citus_json_concatenate(json,json) json
| function citus_json_concatenate_final(json) json
| function citus_jsonb_concatenate(jsonb,jsonb) jsonb
| function citus_jsonb_concatenate_final(jsonb) jsonb
| function citus_node_capacity_1(integer) real
| function citus_prepare_pg_upgrade() void
| function citus_query_stats() SETOF record
| function citus_relation_size(regclass) bigint
| function citus_server_id() uuid
| function citus_set_default_rebalance_strategy(text) void
| function citus_shard_allowed_on_node_true(bigint,integer) boolean
| function citus_shard_cost_1(bigint) real
| function citus_shard_cost_by_disk_size(bigint) real
| function citus_stat_statements() SETOF record
| function citus_stat_statements_reset() void
| function citus_table_is_visible(oid) boolean
| function citus_table_size(regclass) bigint
| function citus_text_send_as_jsonb(text) bytea
| function citus_total_relation_size(regclass) bigint
| function citus_truncate_trigger() trigger
| function citus_validate_rebalance_strategy_functions(regproc,regproc,regproc) void
| function citus_version() text
| function citus_worker_stat_activity() SETOF record
| function column_name_to_column(regclass,text) text
| function column_to_column_name(regclass,text) text
| function coord_combine_agg(oid,cstring,anyelement) anyelement
| function coord_combine_agg_ffunc(internal,oid,cstring,anyelement) anyelement
| function coord_combine_agg_sfunc(internal,oid,cstring,anyelement) internal
| function create_distributed_function(regprocedure,text,text) void
| function create_distributed_table(regclass,text,citus.distribution_type,text) void
| function create_intermediate_result(text,text) bigint
| function create_reference_table(regclass) void
| function distributed_tables_colocated(regclass,regclass) boolean
| function dump_global_wait_edges() SETOF record
| function dump_local_wait_edges() SETOF record
| function fetch_intermediate_results(text[],text,integer) bigint
| function get_all_active_transactions() SETOF record
| function get_colocated_shard_array(bigint) bigint[]
| function get_colocated_table_array(regclass) regclass[]
| function get_current_transaction_id() record
| function get_global_active_transactions() SETOF record
| function get_rebalance_progress() TABLE(sessionid integer, table_name regclass, shardid bigint, shard_size bigint, sourcename text, sourceport integer, targetname text, targetport integer, progress bigint)
| function get_rebalance_table_shards_plan(regclass,real,integer,bigint[],boolean,name) TABLE(table_name regclass, shardid bigint, shard_size bigint, sourcename text, sourceport integer, targetname text, targetport integer)
| function get_shard_id_for_distribution_column(regclass,"any") bigint
| function isolate_tenant_to_new_shard(regclass,"any",text) bigint
| function json_cat_agg(json) json
| function jsonb_cat_agg(jsonb) jsonb
| function lock_relation_if_exists(text,text) boolean
| function lock_shard_metadata(integer,bigint[]) void
| function lock_shard_resources(integer,bigint[]) void
| function mark_tables_colocated(regclass,regclass[]) void
| function master_activate_node(text,integer) integer
| function master_add_inactive_node(text,integer,integer,noderole,name) integer
| function master_add_node(text,integer,integer,noderole,name) integer
| function master_add_secondary_node(text,integer,text,integer,name) integer
| function master_append_table_to_shard(bigint,text,text,integer) real
| function master_apply_delete_command(text) integer
| function master_conninfo_cache_invalidate() trigger
| function master_copy_shard_placement(bigint,text,integer,text,integer,boolean,citus.shard_transfer_mode) void
| function master_create_distributed_table(regclass,text,citus.distribution_type) void
| function master_create_empty_shard(text) bigint
| function master_create_worker_shards(text,integer,integer) void
| function master_disable_node(text,integer) void
| function master_dist_local_group_cache_invalidate() trigger
| function master_dist_node_cache_invalidate() trigger
| function master_dist_object_cache_invalidate() trigger
| function master_dist_partition_cache_invalidate() trigger
| function master_dist_placement_cache_invalidate() trigger
| function master_dist_shard_cache_invalidate() trigger
| function master_drain_node(text,integer,citus.shard_transfer_mode,name) void
| function master_drop_all_shards(regclass,text,text) integer
| function master_drop_sequences(text[]) void
| function master_get_active_worker_nodes() SETOF record
| function master_get_new_placementid() bigint
| function master_get_new_shardid() bigint
| function master_get_table_ddl_events(text) SETOF text
| function master_get_table_metadata(text) record
| function master_modify_multiple_shards(text) integer
| function master_move_shard_placement(bigint,text,integer,text,integer,citus.shard_transfer_mode) void
| function master_remove_distributed_table_metadata_from_workers(regclass,text,text) void
| function master_remove_node(text,integer) void
| function master_remove_partition_metadata(regclass,text,text) void
| function master_run_on_worker(text[],integer[],text[],boolean) SETOF record
| function master_set_node_property(text,integer,text,boolean) void
| function master_unmark_object_distributed(oid,oid,integer) void
| function master_update_node(integer,text,integer,boolean,integer) void
| function master_update_shard_statistics(bigint) bigint
| function master_update_table_statistics(regclass) void
| function poolinfo_valid(text) boolean
| function read_intermediate_result(text,citus_copy_format) SETOF record
| function read_intermediate_results(text[],citus_copy_format) SETOF record
| function rebalance_table_shards(regclass,real,integer,bigint[],citus.shard_transfer_mode,boolean,name) void
| function recover_prepared_transactions() integer
| function relation_is_a_known_shard(regclass) boolean
| function replicate_table_shards(regclass,integer,integer,bigint[],citus.shard_transfer_mode) void
| function role_exists(name) boolean
| function run_command_on_colocated_placements(regclass,regclass,text,boolean) SETOF record
| function run_command_on_placements(regclass,text,boolean) SETOF record
| function run_command_on_shards(regclass,text,boolean) SETOF record
| function run_command_on_workers(text,boolean) SETOF record
| function shard_name(regclass,bigint) text
| function start_metadata_sync_to_node(text,integer) void
| function stop_metadata_sync_to_node(text,integer) void
| function task_tracker_assign_task(bigint,integer,text) void
| function task_tracker_cleanup_job(bigint) void
| function task_tracker_conninfo_cache_invalidate() trigger
| function task_tracker_task_status(bigint,integer) integer
| function upgrade_to_reference_table(regclass) void
| function worker_append_table_to_shard(text,text,text,integer) void
| function worker_apply_inter_shard_ddl_command(bigint,text,bigint,text,text) void
| function worker_apply_sequence_command(text) void
| function worker_apply_sequence_command(text,regtype) void
| function worker_apply_shard_ddl_command(bigint,text) void
| function worker_apply_shard_ddl_command(bigint,text,text) void
| function worker_cleanup_job_schema_cache() void
| function worker_create_or_replace_object(text) boolean
| function worker_create_schema(bigint,text) void
| function worker_create_truncate_trigger(regclass) void
| function worker_drop_distributed_table(text) void
| function worker_execute_sql_task(bigint,integer,text,boolean) bigint
| function worker_fetch_foreign_file(text,text,bigint,text[],integer[]) void
| function worker_fetch_partition_file(bigint,integer,integer,integer,text,integer) void
| function worker_hash("any") integer
| function worker_hash_partition_table(bigint,integer,text,text,oid,anyarray) void
| function worker_merge_files_and_run_query(bigint,integer,text,text) void
| function worker_merge_files_into_table(bigint,integer,text[],text[]) void
| function worker_partial_agg(oid,anyelement) cstring
| function worker_partial_agg_ffunc(internal) cstring
| function worker_partial_agg_sfunc(internal,oid,anyelement) internal
| function worker_partition_query_result(text,text,integer,citus.distribution_type,text[],text[],boolean) SETOF record
| function worker_range_partition_table(bigint,integer,text,text,oid,anyarray) void
| function worker_repartition_cleanup(bigint) void
| schema citus
| schema citus_internal
| sequence pg_dist_colocationid_seq
| sequence pg_dist_groupid_seq
| sequence pg_dist_node_nodeid_seq
| sequence pg_dist_placement_placementid_seq
| sequence pg_dist_shardid_seq
| table citus.pg_dist_object
| table pg_dist_authinfo
| table pg_dist_colocation
| table pg_dist_local_group
| table pg_dist_node
| table pg_dist_node_metadata
| table pg_dist_partition
| table pg_dist_placement
| table pg_dist_poolinfo
| table pg_dist_rebalance_strategy
| table pg_dist_shard
| table pg_dist_transaction
| type citus.distribution_type
| type citus.shard_transfer_mode
| type citus_copy_format
| type noderole
| view citus_dist_stat_activity
| view citus_lock_waits
| view citus_shard_indexes_on_worker
| view citus_shards_on_worker
| view citus_stat_statements
| view citus_worker_stat_activity
| view pg_dist_shard_placement
(188 rows)
-- Test downgrade to 9.2-2 from 9.2-4
ALTER EXTENSION citus UPDATE TO '9.2-4';
ALTER EXTENSION citus UPDATE TO '9.2-2';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
/*
* As we mistakenly bumped schema version to 9.3-1 in a bad release, we support
* updating citus schema from 9.3-1 to 9.2-4, but we do not support updates to 9.3-1.
*
* Hence the query below should fail.
*/
ALTER EXTENSION citus UPDATE TO '9.3-1';
ERROR: extension "citus" has no update path from version "9.2-2" to version "9.3-1"
ALTER EXTENSION citus UPDATE TO '9.2-4';
-- Snapshot of state at 9.2-4
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Test downgrade to 9.2-4 from 9.3-2
ALTER EXTENSION citus UPDATE TO '9.3-2';
ALTER EXTENSION citus UPDATE TO '9.2-4';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 9.3-2
ALTER EXTENSION citus UPDATE TO '9.3-2';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
function citus_extradata_container(internal) void |
| function citus_extradata_container(internal) SETOF record
| function citus_remote_connection_stats() SETOF record
| function replicate_reference_tables() void
| function truncate_local_data_after_distributing_table(regclass) void
| function update_distributed_table_colocation(regclass,text) void
| function worker_create_or_alter_role(text,text,text) boolean
(7 rows)
-- Test downgrade to 9.3-2 from 9.4-1
ALTER EXTENSION citus UPDATE TO '9.4-1';
ALTER EXTENSION citus UPDATE TO '9.3-2';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 9.4-1
ALTER EXTENSION citus UPDATE TO '9.4-1';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
| function worker_last_saved_explain_analyze() TABLE(explain_analyze_output text, execution_duration double precision)
| function worker_save_query_explain_analyze(text,jsonb) SETOF record
(2 rows)
-- Test upgrade paths for backported citus_pg_upgrade functions
ALTER EXTENSION citus UPDATE TO '9.4-2';
ALTER EXTENSION citus UPDATE TO '9.4-1';
-- Should be empty result, even though the downgrade doesn't undo the upgrade, the
-- function signature doesn't change, which is reflected here.
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
ALTER EXTENSION citus UPDATE TO '9.4-2';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 9.4-1
ALTER EXTENSION citus UPDATE TO '9.4-1';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Test upgrade paths for backported improvement of master_update_table_statistics function
ALTER EXTENSION citus UPDATE TO '9.4-3';
-- should see the new source code with internal function citus_update_table_statistics
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
citus_update_table_statistics
(1 row)
ALTER EXTENSION citus UPDATE TO '9.4-2';
-- should see the old source code
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
+
DECLARE +
colocated_tables regclass[]; +
BEGIN +
SELECT get_colocated_table_array(relation) INTO colocated_tables;+
PERFORM +
master_update_shard_statistics(shardid) +
FROM +
pg_dist_shard +
WHERE +
logicalrelid = ANY (colocated_tables); +
END; +
(1 row)
-- Should be empty result
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
ALTER EXTENSION citus UPDATE TO '9.4-3';
-- should see the new source code with internal function citus_update_table_statistics
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
citus_update_table_statistics
(1 row)
-- Should be empty result
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 9.4-1
ALTER EXTENSION citus UPDATE TO '9.4-1';
-- should see the old source code
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
+
DECLARE +
colocated_tables regclass[]; +
BEGIN +
SELECT get_colocated_table_array(relation) INTO colocated_tables;+
PERFORM +
master_update_shard_statistics(shardid) +
FROM +
pg_dist_shard +
WHERE +
logicalrelid = ANY (colocated_tables); +
END; +
(1 row)
-- Should be empty result
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Test downgrade to 9.4-1 from 9.5-1
ALTER EXTENSION citus UPDATE TO '9.5-1';
BEGIN;
SELECT master_add_node('localhost', :master_port, groupId=>0);
master_add_node
---------------------------------------------------------------------
1
(1 row)
CREATE TABLE citus_local_table (a int);
SELECT create_citus_local_table('citus_local_table');
NOTICE: create_citus_local_table is deprecated in favour of citus_add_local_table_to_metadata
create_citus_local_table
---------------------------------------------------------------------
(1 row)
-- downgrade from 9.5-1 to 9.4-1 should fail as we have a citus local table
ALTER EXTENSION citus UPDATE TO '9.4-1';
ERROR: citus local tables are introduced in Citus 9.5
HINT: To downgrade Citus to an older version, you should first convert each citus local table to a postgres table by executing SELECT undistribute_table("%s")
CONTEXT: PL/pgSQL function inline_code_block line XX at RAISE
ROLLBACK;
-- now we can downgrade as there is no citus local table
ALTER EXTENSION citus UPDATE TO '9.4-1';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 9.5-1
ALTER EXTENSION citus UPDATE TO '9.5-1';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
function master_drop_sequences(text[]) void |
function task_tracker_assign_task(bigint,integer,text) void |
function task_tracker_cleanup_job(bigint) void |
function task_tracker_conninfo_cache_invalidate() trigger |
function task_tracker_task_status(bigint,integer) integer |
function worker_execute_sql_task(bigint,integer,text,boolean) bigint |
function worker_merge_files_and_run_query(bigint,integer,text,text) void |
| function create_citus_local_table(regclass) void
| function undistribute_table(regclass) void
| function worker_record_sequence_dependency(regclass,regclass,name) void
(10 rows)
-- Test upgrade paths for backported citus_pg_upgrade functions
ALTER EXTENSION citus UPDATE TO '9.5-2';
ALTER EXTENSION citus UPDATE TO '9.5-1';
-- Should be empty result, even though the downgrade doesn't undo the upgrade, the
-- function signature doesn't change, which is reflected here.
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
ALTER EXTENSION citus UPDATE TO '9.5-2';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 9.5-1
ALTER EXTENSION citus UPDATE TO '9.5-1';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Test upgrade paths for backported improvement of master_update_table_statistics function
ALTER EXTENSION citus UPDATE TO '9.5-3';
-- should see the new source code with internal function citus_update_table_statistics
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
citus_update_table_statistics
(1 row)
ALTER EXTENSION citus UPDATE TO '9.5-2';
-- should see the old source code
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
+
DECLARE +
colocated_tables regclass[]; +
BEGIN +
SELECT get_colocated_table_array(relation) INTO colocated_tables;+
PERFORM +
master_update_shard_statistics(shardid) +
FROM +
pg_dist_shard +
WHERE +
logicalrelid = ANY (colocated_tables); +
END; +
(1 row)
-- Should be empty result
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
ALTER EXTENSION citus UPDATE TO '9.5-3';
-- should see the new source code with internal function citus_update_table_statistics
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
citus_update_table_statistics
(1 row)
-- Should be empty result
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 9.5-1
ALTER EXTENSION citus UPDATE TO '9.5-1';
-- should see the old source code
SELECT prosrc FROM pg_proc WHERE proname = 'master_update_table_statistics' ORDER BY 1;
prosrc
---------------------------------------------------------------------
+
DECLARE +
colocated_tables regclass[]; +
BEGIN +
SELECT get_colocated_table_array(relation) INTO colocated_tables;+
PERFORM +
master_update_shard_statistics(shardid) +
FROM +
pg_dist_shard +
WHERE +
logicalrelid = ANY (colocated_tables); +
END; +
(1 row)
-- Should be empty result
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- We removed the upgrade paths to 10.0-1, 10.0-2 and 10.0-3 due to a bug that blocked
-- upgrades to 10.0, Therefore we test upgrades to 10.0-4 instead
-- Test downgrade to 9.5-1 from 10.0-4
ALTER EXTENSION citus UPDATE TO '10.0-4';
ALTER EXTENSION citus UPDATE TO '9.5-1';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 10.0-4
ALTER EXTENSION citus UPDATE TO '10.0-4';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
function citus_total_relation_size(regclass) bigint |
function create_citus_local_table(regclass) void |
function mark_tables_colocated(regclass,regclass[]) void |
function master_conninfo_cache_invalidate() trigger |
function master_create_distributed_table(regclass,text,citus.distribution_type) void |
function master_create_worker_shards(text,integer,integer) void |
function master_dist_local_group_cache_invalidate() trigger |
function master_dist_node_cache_invalidate() trigger |
function master_dist_object_cache_invalidate() trigger |
function master_dist_partition_cache_invalidate() trigger |
function master_dist_placement_cache_invalidate() trigger |
function master_dist_shard_cache_invalidate() trigger |
function master_drop_all_shards(regclass,text,text) integer |
function master_modify_multiple_shards(text) integer |
function undistribute_table(regclass) void |
function upgrade_to_reference_table(regclass) void |
| access method columnar
| function alter_columnar_table_reset(regclass,boolean,boolean,boolean,boolean) void
| function alter_columnar_table_set(regclass,integer,integer,name,integer) void
| function alter_distributed_table(regclass,text,integer,text,boolean) void
| function alter_old_partitions_set_access_method(regclass,timestamp with time zone,name)
| function alter_table_set_access_method(regclass,text) void
| function citus_activate_node(text,integer) integer
| function citus_add_inactive_node(text,integer,integer,noderole,name) integer
| function citus_add_local_table_to_metadata(regclass,boolean) void
| function citus_add_node(text,integer,integer,noderole,name) integer
| function citus_add_secondary_node(text,integer,text,integer,name) integer
| function citus_conninfo_cache_invalidate() trigger
| function citus_copy_shard_placement(bigint,text,integer,text,integer,boolean,citus.shard_transfer_mode) void
| function citus_disable_node(text,integer) void
| function citus_dist_local_group_cache_invalidate() trigger
| function citus_dist_node_cache_invalidate() trigger
| function citus_dist_object_cache_invalidate() trigger
| function citus_dist_partition_cache_invalidate() trigger
| function citus_dist_placement_cache_invalidate() trigger
| function citus_dist_shard_cache_invalidate() trigger
| function citus_drain_node(text,integer,citus.shard_transfer_mode,name) void
| function citus_drop_all_shards(regclass,text,text) integer
| function citus_get_active_worker_nodes() SETOF record
| function citus_internal.columnar_ensure_objects_exist() void
| function citus_move_shard_placement(bigint,text,integer,text,integer,citus.shard_transfer_mode) void
| function citus_remove_node(text,integer) void
| function citus_set_coordinator_host(text,integer,noderole,name) void
| function citus_set_node_property(text,integer,text,boolean) void
| function citus_shard_sizes() SETOF record
| function citus_total_relation_size(regclass,boolean) bigint
| function citus_unmark_object_distributed(oid,oid,integer) void
| function citus_update_node(integer,text,integer,boolean,integer) void
| function citus_update_shard_statistics(bigint) bigint
| function citus_update_table_statistics(regclass) void
| function columnar.columnar_handler(internal) table_am_handler
| function fix_pre_citus10_partitioned_table_constraint_names() SETOF regclass
| function fix_pre_citus10_partitioned_table_constraint_names(regclass) void
| function notify_constraint_dropped() void
| function remove_local_tables_from_metadata() void
| function time_partition_range(regclass) record
| function undistribute_table(regclass,boolean) void
| function worker_change_sequence_dependency(regclass,regclass,regclass) void
| function worker_fix_pre_citus10_partitioned_table_constraint_names(regclass,bigint,text) void
| schema columnar
| sequence columnar.storageid_seq
| table columnar.chunk
| table columnar.chunk_group
| table columnar.options
| table columnar.stripe
| view citus_shards
| view public.citus_tables
| view time_partitions
(68 rows)
-- check that we depend on the existence of public schema, and we can not drop it now
DROP SCHEMA public;
ERROR: cannot drop schema public because other objects depend on it
DETAIL: extension citus depends on schema public
HINT: Use DROP ... CASCADE to drop the dependent objects too.
-- verify that citus_tables view is on pg_catalog if public schema is absent.
ALTER EXTENSION citus UPDATE TO '9.5-1';
DROP SCHEMA public;
ALTER EXTENSION citus UPDATE TO '10.0-4';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
view public.citus_tables |
| view citus_tables
(2 rows)
-- recreate public schema, and recreate citus_tables in the public schema by default
CREATE SCHEMA public;
GRANT ALL ON SCHEMA public TO public;
ALTER EXTENSION citus UPDATE TO '9.5-1';
ALTER EXTENSION citus UPDATE TO '10.0-4';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
view citus_tables |
| view public.citus_tables
(2 rows)
-- not print "HINT: " to hide current lib version
\set VERBOSITY terse
CREATE TABLE columnar_table(a INT, b INT) USING columnar;
SET citus.enable_version_checks TO ON;
-- all should throw an error due to version mismatch
VACUUM FULL columnar_table;
ERROR: loaded Citus library version differs from installed extension version
INSERT INTO columnar_table SELECT i FROM generate_series(1, 10) i;
ERROR: loaded Citus library version differs from installed extension version
VACUUM columnar_table;
WARNING: loaded Citus library version differs from installed extension version
TRUNCATE columnar_table;
ERROR: loaded Citus library version differs from installed extension version
DROP TABLE columnar_table;
ERROR: loaded Citus library version differs from installed extension version
CREATE INDEX ON columnar_table (a);
ERROR: loaded Citus library version differs from installed extension version
SELECT alter_columnar_table_set('columnar_table', compression => 'pglz');
ERROR: loaded Citus library version differs from installed extension version
SELECT alter_columnar_table_reset('columnar_table');
ERROR: loaded Citus library version differs from installed extension version
INSERT INTO columnar_table SELECT * FROM columnar_table;
ERROR: loaded Citus library version differs from installed extension version
SELECT 1 FROM columnar_table; -- columnar custom scan
ERROR: loaded Citus library version differs from installed extension version
SET columnar.enable_custom_scan TO OFF;
SELECT 1 FROM columnar_table; -- seq scan
ERROR: loaded Citus library version differs from installed extension version
CREATE TABLE new_columnar_table (a int) USING columnar;
ERROR: loaded Citus library version differs from installed extension version
-- do cleanup for the rest of the tests
SET citus.enable_version_checks TO OFF;
DROP TABLE columnar_table;
RESET columnar.enable_custom_scan;
\set VERBOSITY default
-- Test downgrade to 10.0-4 from 10.1-1
ALTER EXTENSION citus UPDATE TO '10.1-1';
ALTER EXTENSION citus UPDATE TO '10.0-4';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 10.1-1
ALTER EXTENSION citus UPDATE TO '10.1-1';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
function citus_add_rebalance_strategy(name,regproc,regproc,regproc,real,real) void |
function citus_internal.columnar_ensure_objects_exist() void |
function citus_internal.pg_dist_rebalance_strategy_enterprise_check() trigger |
function create_distributed_table(regclass,text,citus.distribution_type,text) void |
function get_rebalance_progress() TABLE(sessionid integer, table_name regclass, shardid bigint, shard_size bigint, sourcename text, sourceport integer, targetname text, targetport integer, progress bigint) |
function get_rebalance_table_shards_plan(regclass,real,integer,bigint[],boolean,name) TABLE(table_name regclass, shardid bigint, shard_size bigint, sourcename text, sourceport integer, targetname text, targetport integer) |
| function citus_add_rebalance_strategy(name,regproc,regproc,regproc,real,real,real) void
| function citus_cleanup_orphaned_shards()
| function citus_local_disk_space_stats() record
| function create_distributed_table(regclass,text,citus.distribution_type,text,integer) void
| function get_rebalance_progress() TABLE(sessionid integer, table_name regclass, shardid bigint, shard_size bigint, sourcename text, sourceport integer, targetname text, targetport integer, progress bigint, source_shard_size bigint, target_shard_size bigint)
| function get_rebalance_table_shards_plan(regclass,real,integer,bigint[],boolean,name,real) TABLE(table_name regclass, shardid bigint, shard_size bigint, sourcename text, sourceport integer, targetname text, targetport integer)
| function worker_partitioned_relation_size(regclass) bigint
| function worker_partitioned_relation_total_size(regclass) bigint
| function worker_partitioned_table_size(regclass) bigint
(15 rows)
-- Test downgrade to 10.1-1 from 10.2-1
ALTER EXTENSION citus UPDATE TO '10.2-1';
ALTER EXTENSION citus UPDATE TO '10.1-1';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 10.2-1
ALTER EXTENSION citus UPDATE TO '10.2-1';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
function citus_drop_all_shards(regclass,text,text) integer |
function stop_metadata_sync_to_node(text,integer) void |
| function citus_drop_all_shards(regclass,text,text,boolean) integer
| function citus_internal.downgrade_columnar_storage(regclass) void
| function citus_internal.upgrade_columnar_storage(regclass) void
| function citus_internal_add_partition_metadata(regclass,"char",text,integer,"char") void
| function citus_internal_add_placement_metadata(bigint,integer,bigint,integer,bigint) void
| function citus_internal_add_shard_metadata(regclass,bigint,"char",text,text) void
| function citus_internal_delete_shard_metadata(bigint) void
| function citus_internal_update_placement_metadata(bigint,integer,integer) void
| function citus_internal_update_relation_colocation(oid,integer) void
| function create_time_partitions(regclass,interval,timestamp with time zone,timestamp with time zone) boolean
| function drop_old_time_partitions(regclass,timestamp with time zone)
| function get_missing_time_partition_ranges(regclass,interval,timestamp with time zone,timestamp with time zone) TABLE(partition_name text, range_from_value text, range_to_value text)
| function stop_metadata_sync_to_node(text,integer,boolean) void
| function worker_nextval(regclass) integer
(16 rows)
-- Test downgrade to 10.2-1 from 10.2-2
ALTER EXTENSION citus UPDATE TO '10.2-2';
ALTER EXTENSION citus UPDATE TO '10.2-1';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 10.2-2
ALTER EXTENSION citus UPDATE TO '10.2-2';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Test downgrade to 10.2-2 from 10.2-3
ALTER EXTENSION citus UPDATE TO '10.2-3';
ALTER EXTENSION citus UPDATE TO '10.2-2';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 10.2-3
ALTER EXTENSION citus UPDATE TO '10.2-3';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Test downgrade to 10.2-3 from 10.2-4
ALTER EXTENSION citus UPDATE TO '10.2-4';
ALTER EXTENSION citus UPDATE TO '10.2-3';
-- Make sure that we don't delete pg_depend entries added in
-- columnar--10.2-3--10.2-4.sql when downgrading to 10.2-3.
SELECT COUNT(*)=10
FROM pg_depend
WHERE classid = 'pg_am'::regclass::oid AND
objid = (select oid from pg_am where amname = 'columnar') AND
objsubid = 0 AND
refclassid = 'pg_class'::regclass::oid AND
refobjsubid = 0 AND
deptype = 'n';
?column?
---------------------------------------------------------------------
t
(1 row)
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 10.2-4
ALTER EXTENSION citus UPDATE TO '10.2-4';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
| function citus_internal.columnar_ensure_am_depends_catalog() void
| function fix_all_partition_shard_index_names() SETOF regclass
| function fix_partition_shard_index_names(regclass) void
| function worker_fix_partition_shard_index_names(regclass,text,text) void
(4 rows)
-- There was a bug when downgrading to 10.2-2 from 10.2-4
-- Test that we do not have any issues with this particular downgrade
ALTER EXTENSION citus UPDATE TO '10.2-2';
ALTER EXTENSION citus UPDATE TO '10.2-4';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Test downgrade to 10.2-4 from 10.2-5
ALTER EXTENSION citus UPDATE TO '10.2-5';
ALTER EXTENSION citus UPDATE TO '10.2-4';
-- Should be empty result since upgrade+downgrade should be a no-op
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Snapshot of state at 10.2-5
ALTER EXTENSION citus UPDATE TO '10.2-5';
SELECT * FROM multi_extension.print_extension_changes();
previous_object | current_object
---------------------------------------------------------------------
(0 rows)
-- Make sure that we defined dependencies from all rel objects (tables,
-- indexes, sequences ..) to columnar table access method ...
SELECT pg_class.oid INTO columnar_schema_members
FROM pg_class, pg_namespace
WHERE pg_namespace.oid=pg_class.relnamespace AND
pg_namespace.nspname='columnar';
SELECT refobjid INTO columnar_schema_members_pg_depend
FROM pg_depend
WHERE classid = 'pg_am'::regclass::oid AND
objid = (select oid from pg_am where amname = 'columnar') AND
objsubid = 0 AND
refclassid = 'pg_class'::regclass::oid AND
refobjsubid = 0 AND
deptype = 'n';
-- ... , so this should be empty,
(TABLE columnar_schema_members EXCEPT TABLE columnar_schema_members_pg_depend)
UNION
(TABLE columnar_schema_members_pg_depend EXCEPT TABLE columnar_schema_members);
oid
---------------------------------------------------------------------
(0 rows)
-- ... , and both columnar_schema_members_pg_depend & columnar_schema_members
-- should have 10 entries.
SELECT COUNT(*)=10 FROM columnar_schema_members_pg_depend;
?column?
---------------------------------------------------------------------
t
(1 row)
DROP TABLE columnar_schema_members, columnar_schema_members_pg_depend;
DROP TABLE multi_extension.prev_objects, multi_extension.extension_diff;
-- show running version
SHOW citus.version;
citus.version
---------------------------------------------------------------------
10.2.9
(1 row)
-- ensure no unexpected objects were created outside pg_catalog
SELECT pgio.type, pgio.identity
FROM pg_depend AS pgd,
pg_extension AS pge,
LATERAL pg_identify_object(pgd.classid, pgd.objid, pgd.objsubid) AS pgio
WHERE pgd.refclassid = 'pg_extension'::regclass AND
pgd.refobjid = pge.oid AND
pge.extname = 'citus' AND
pgio.schema NOT IN ('pg_catalog', 'citus', 'citus_internal', 'test', 'columnar')
ORDER BY 1, 2;
type | identity
---------------------------------------------------------------------
view | public.citus_tables
(1 row)
-- see incompatible version errors out
RESET citus.enable_version_checks;
DROP EXTENSION citus;
CREATE EXTENSION citus VERSION '8.0-1';
ERROR: specified version incompatible with loaded Citus library
DETAIL: Loaded library requires 10.2, but 8.0-1 was specified.
HINT: If a newer library is present, restart the database and try the command again.
-- Test non-distributed queries work even in version mismatch
SET citus.enable_version_checks TO 'false';
CREATE EXTENSION citus VERSION '8.1-1';
SET citus.enable_version_checks TO 'true';
-- Test CREATE TABLE
CREATE TABLE version_mismatch_table(column1 int);
-- Test COPY
\copy version_mismatch_table FROM STDIN;
-- Test INSERT
INSERT INTO version_mismatch_table(column1) VALUES(5);
-- Test SELECT
SELECT * FROM version_mismatch_table ORDER BY column1;
column1
---------------------------------------------------------------------
0
1
2
3
4
5
(6 rows)
-- Test SELECT from pg_catalog
SELECT d.datname as "Name",
pg_catalog.pg_get_userbyid(d.datdba) as "Owner",
pg_catalog.array_to_string(d.datacl, E'\n') AS "Access privileges"
FROM pg_catalog.pg_database d
ORDER BY 1;
Name | Owner | Access privileges
---------------------------------------------------------------------
postgres | postgres |
regression | postgres |
template0 | postgres | =c/postgres +
| | postgres=CTc/postgres
template1 | postgres | =c/postgres +
| | postgres=CTc/postgres
(4 rows)
-- We should not distribute table in version mistmatch
SELECT create_distributed_table('version_mismatch_table', 'column1');
ERROR: loaded Citus library version differs from installed extension version
DETAIL: Loaded library requires 10.2, but the installed extension version is 8.1-1.
HINT: Run ALTER EXTENSION citus UPDATE and try again.
-- This function will cause fail in next ALTER EXTENSION
CREATE OR REPLACE FUNCTION pg_catalog.relation_is_a_known_shard(regclass)
RETURNS void LANGUAGE plpgsql
AS $function$
BEGIN
END;
$function$;
ERROR: cannot change return type of existing function
HINT: Use DROP FUNCTION relation_is_a_known_shard(regclass) first.
SET citus.enable_version_checks TO 'false';
-- This will fail because of previous function declaration
ALTER EXTENSION citus UPDATE TO '8.1-1';
NOTICE: version "8.1-1" of extension "citus" is already installed
-- We can DROP problematic function and continue ALTER EXTENSION even when version checks are on
SET citus.enable_version_checks TO 'true';
DROP FUNCTION pg_catalog.relation_is_a_known_shard(regclass);
ERROR: cannot drop function relation_is_a_known_shard(regclass) because extension citus requires it
HINT: You can drop extension citus instead.
SET citus.enable_version_checks TO 'false';
ALTER EXTENSION citus UPDATE TO '8.1-1';
NOTICE: version "8.1-1" of extension "citus" is already installed
-- Test updating to the latest version without specifying the version number
ALTER EXTENSION citus UPDATE;
-- re-create in newest version
DROP EXTENSION citus;
\c
CREATE EXTENSION citus;
-- test cache invalidation in workers
\c - - - :worker_1_port
DROP EXTENSION citus;
SET citus.enable_version_checks TO 'false';
CREATE EXTENSION citus VERSION '8.0-1';
SET citus.enable_version_checks TO 'true';
-- during ALTER EXTENSION, we should invalidate the cache
ALTER EXTENSION citus UPDATE;
-- if cache is invalidated succesfull, this \d should work without any problem
\d
List of relations
Schema | Name | Type | Owner
---------------------------------------------------------------------
public | citus_tables | view | postgres
(1 row)
\c - - - :master_port
-- test https://github.com/citusdata/citus/issues/3409
CREATE USER testuser2 SUPERUSER;
NOTICE: not propagating CREATE ROLE/USER commands to worker nodes
HINT: Connect to worker nodes directly to manually create all necessary users and roles.
SET ROLE testuser2;
DROP EXTENSION Citus;
-- Loop until we see there's no maintenance daemon running
DO $$begin
for i in 0 .. 100 loop
if i = 100 then raise 'Waited too long'; end if;
PERFORM pg_stat_clear_snapshot();
perform * from pg_stat_activity where application_name = 'Citus Maintenance Daemon';
if not found then exit; end if;
perform pg_sleep(0.1);
end loop;
end$$;
SELECT datid, datname, usename FROM pg_stat_activity WHERE application_name = 'Citus Maintenance Daemon';
datid | datname | usename
---------------------------------------------------------------------
(0 rows)
CREATE EXTENSION Citus;
-- Loop until we there's a maintenance daemon running
DO $$begin
for i in 0 .. 100 loop
if i = 100 then raise 'Waited too long'; end if;
PERFORM pg_stat_clear_snapshot();
perform * from pg_stat_activity where application_name = 'Citus Maintenance Daemon';
if found then exit; end if;
perform pg_sleep(0.1);
end loop;
end$$;
SELECT datid, datname, usename FROM pg_stat_activity WHERE application_name = 'Citus Maintenance Daemon';
datid | datname | usename
---------------------------------------------------------------------
16384 | regression | testuser2
(1 row)
RESET ROLE;
-- check that maintenance daemon gets (re-)started for the right user
DROP EXTENSION citus;
CREATE USER testuser SUPERUSER;
SET ROLE testuser;
CREATE EXTENSION citus;
SELECT datname, current_database(),
usename, (SELECT extowner::regrole::text FROM pg_extension WHERE extname = 'citus')
FROM test.maintenance_worker();
datname | current_database | usename | extowner
---------------------------------------------------------------------
regression | regression | testuser | testuser
(1 row)
-- and recreate as the right owner
RESET ROLE;
DROP EXTENSION citus;
CREATE EXTENSION citus;
-- Check that maintenance daemon can also be started in another database
CREATE DATABASE another;
NOTICE: Citus partially supports CREATE DATABASE for distributed databases
DETAIL: Citus does not propagate CREATE DATABASE command to workers
HINT: You can manually create a database and its extensions on workers.
\c another
CREATE EXTENSION citus;
CREATE SCHEMA test;
:create_function_test_maintenance_worker
-- see that the daemon started
SELECT datname, current_database(),
usename, (SELECT extowner::regrole::text FROM pg_extension WHERE extname = 'citus')
FROM test.maintenance_worker();
datname | current_database | usename | extowner
---------------------------------------------------------------------
another | another | postgres | postgres
(1 row)
-- Test that database with active worker can be dropped.
\c regression
CREATE SCHEMA test_daemon;
-- we create a similar function on the regression database
-- note that this function checks for the existence of the daemon
-- when not found, returns true else tries for 5 times and
-- returns false
CREATE OR REPLACE FUNCTION test_daemon.maintenance_daemon_died(p_dbname text)
RETURNS boolean
LANGUAGE plpgsql
AS $$
DECLARE
activity record;
BEGIN
PERFORM pg_stat_clear_snapshot();
SELECT * INTO activity FROM pg_stat_activity
WHERE application_name = 'Citus Maintenance Daemon' AND datname = p_dbname;
IF activity.pid IS NULL THEN
RETURN true;
ELSE
RETURN false;
END IF;
END;
$$;
-- drop the database and see that the daemon is dead
DROP DATABASE another;
SELECT
*
FROM
test_daemon.maintenance_daemon_died('another');
maintenance_daemon_died
---------------------------------------------------------------------
t
(1 row)
-- we don't need the schema and the function anymore
DROP SCHEMA test_daemon CASCADE;
NOTICE: drop cascades to function test_daemon.maintenance_daemon_died(text)
-- verify citus does not crash while creating a table when run against an older worker
-- create_distributed_table piggybacks multiple commands into single one, if one worker
-- did not have the required UDF it should fail instead of crash.
-- create a test database, configure citus with single node
CREATE DATABASE another;
NOTICE: Citus partially supports CREATE DATABASE for distributed databases
DETAIL: Citus does not propagate CREATE DATABASE command to workers
HINT: You can manually create a database and its extensions on workers.
\c - - - :worker_1_port
CREATE DATABASE another;
NOTICE: Citus partially supports CREATE DATABASE for distributed databases
DETAIL: Citus does not propagate CREATE DATABASE command to workers
HINT: You can manually create a database and its extensions on workers.
\c - - - :master_port
\c another
CREATE EXTENSION citus;
SET citus.enable_object_propagation TO off; -- prevent distributed transactions during add node
SELECT FROM master_add_node('localhost', :worker_1_port);
WARNING: citus.enable_object_propagation is off, not creating distributed objects on worker
DETAIL: distributed objects are only kept in sync when citus.enable_object_propagation is set to on. Newly activated nodes will not get these objects created
--
(1 row)
\c - - - :worker_1_port
CREATE EXTENSION citus;
ALTER FUNCTION assign_distributed_transaction_id(initiator_node_identifier integer, transaction_number bigint, transaction_stamp timestamp with time zone)
RENAME TO dummy_assign_function;
\c - - - :master_port
SET citus.shard_replication_factor to 1;
-- create_distributed_table command should fail
CREATE TABLE t1(a int, b int);
SET client_min_messages TO ERROR;
DO $$
BEGIN
BEGIN
SELECT create_distributed_table('t1', 'a');
EXCEPTION WHEN OTHERS THEN
RAISE 'create distributed table failed';
END;
END;
$$;
ERROR: create distributed table failed
CONTEXT: PL/pgSQL function inline_code_block line XX at RAISE
\c regression
\c - - - :master_port
DROP DATABASE another;
\c - - - :worker_1_port
DROP DATABASE another;
\c - - - :master_port
-- only the regression database should have a maintenance daemon
SELECT count(*) FROM pg_stat_activity WHERE application_name = 'Citus Maintenance Daemon';
count
---------------------------------------------------------------------
1
(1 row)
-- recreate the extension immediately after the maintenancae daemon errors
SELECT pg_cancel_backend(pid) FROM pg_stat_activity WHERE application_name = 'Citus Maintenance Daemon';
pg_cancel_backend
---------------------------------------------------------------------
t
(1 row)
DROP EXTENSION citus;
CREATE EXTENSION citus;
-- wait for maintenance daemon restart
SELECT datname, current_database(),
usename, (SELECT extowner::regrole::text FROM pg_extension WHERE extname = 'citus')
FROM test.maintenance_worker();
datname | current_database | usename | extowner
---------------------------------------------------------------------
regression | regression | postgres | postgres
(1 row)
-- confirm that there is only one maintenance daemon
SELECT count(*) FROM pg_stat_activity WHERE application_name = 'Citus Maintenance Daemon';
count
---------------------------------------------------------------------
1
(1 row)
-- kill the maintenance daemon
SELECT pg_cancel_backend(pid) FROM pg_stat_activity WHERE application_name = 'Citus Maintenance Daemon';
pg_cancel_backend
---------------------------------------------------------------------
t
(1 row)
-- reconnect
\c - - - :master_port
-- run something that goes through planner hook and therefore kicks of maintenance daemon
SELECT 1;
?column?
---------------------------------------------------------------------
1
(1 row)
-- wait for maintenance daemon restart
SELECT datname, current_database(),
usename, (SELECT extowner::regrole::text FROM pg_extension WHERE extname = 'citus')
FROM test.maintenance_worker();
datname | current_database | usename | extowner
---------------------------------------------------------------------
regression | regression | postgres | postgres
(1 row)
-- confirm that there is only one maintenance daemon
SELECT count(*) FROM pg_stat_activity WHERE application_name = 'Citus Maintenance Daemon';
count
---------------------------------------------------------------------
1
(1 row)
DROP TABLE version_mismatch_table;
DROP SCHEMA multi_extension;
ERROR: cannot drop schema multi_extension because other objects depend on it
DETAIL: function multi_extension.print_extension_changes() depends on schema multi_extension
HINT: Use DROP ... CASCADE to drop the dependent objects too.
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