mirror of https://github.com/citusdata/citus.git
477 lines
20 KiB
Plaintext
477 lines
20 KiB
Plaintext
CREATE SCHEMA mx_alter_distributed_table;
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SET search_path TO mx_alter_distributed_table;
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SET citus.shard_replication_factor TO 1;
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ALTER SEQUENCE pg_catalog.pg_dist_colocationid_seq RESTART 1410000;
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-- test alter_distributed_table UDF
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CREATE TABLE adt_table (a INT, b INT);
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CREATE TABLE adt_col (a INT UNIQUE, b INT);
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CREATE TABLE adt_ref (a INT REFERENCES adt_col(a));
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SELECT create_distributed_table('adt_table', 'a', colocate_with:='none');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT create_distributed_table('adt_col', 'a', colocate_with:='adt_table');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT create_distributed_table('adt_ref', 'a', colocate_with:='adt_table');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO adt_table VALUES (1, 2), (3, 4), (5, 6);
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INSERT INTO adt_col VALUES (3, 4), (5, 6), (7, 8);
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INSERT INTO adt_ref VALUES (3), (5);
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SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text LIKE 'adt%';
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table_name | citus_table_type | distribution_column | shard_count
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---------------------------------------------------------------------
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adt_col | distributed | a | 4
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adt_ref | distributed | a | 4
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adt_table | distributed | a | 4
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(3 rows)
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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;
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Colocation Groups
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---------------------------------------------------------------------
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adt_col, adt_ref, adt_table
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(1 row)
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SELECT conrelid::regclass::text AS "Referencing Table", pg_get_constraintdef(oid, true) AS "Definition" FROM pg_constraint
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WHERE (conrelid::regclass::text = 'adt_col' OR confrelid::regclass::text = 'adt_col') ORDER BY 1;
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Referencing Table | Definition
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---------------------------------------------------------------------
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adt_col | UNIQUE (a)
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adt_ref | FOREIGN KEY (a) REFERENCES adt_col(a)
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(2 rows)
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SET client_min_messages TO WARNING;
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SELECT alter_distributed_table('adt_table', shard_count:=6, cascade_to_colocated:=true);
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SET client_min_messages TO DEFAULT;
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SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text LIKE 'adt%';
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table_name | citus_table_type | distribution_column | shard_count
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---------------------------------------------------------------------
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adt_col | distributed | a | 6
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adt_ref | distributed | a | 6
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adt_table | distributed | a | 6
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(3 rows)
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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;
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Colocation Groups
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---------------------------------------------------------------------
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adt_col, adt_ref, adt_table
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(1 row)
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SELECT conrelid::regclass::text AS "Referencing Table", pg_get_constraintdef(oid, true) AS "Definition" FROM pg_constraint
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WHERE (conrelid::regclass::text = 'adt_col' OR confrelid::regclass::text = 'adt_col') ORDER BY 1;
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Referencing Table | Definition
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---------------------------------------------------------------------
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adt_col | UNIQUE (a)
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adt_ref | FOREIGN KEY (a) REFERENCES adt_col(a)
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(2 rows)
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SELECT alter_distributed_table('adt_table', distribution_column:='b', colocate_with:='none');
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NOTICE: creating a new table for mx_alter_distributed_table.adt_table
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NOTICE: moving the data of mx_alter_distributed_table.adt_table
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NOTICE: dropping the old mx_alter_distributed_table.adt_table
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NOTICE: renaming the new table to mx_alter_distributed_table.adt_table
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text LIKE 'adt%';
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table_name | citus_table_type | distribution_column | shard_count
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---------------------------------------------------------------------
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adt_col | distributed | a | 6
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adt_ref | distributed | a | 6
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adt_table | distributed | b | 6
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(3 rows)
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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;
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Colocation Groups
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---------------------------------------------------------------------
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adt_col, adt_ref
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adt_table
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(2 rows)
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SELECT conrelid::regclass::text AS "Referencing Table", pg_get_constraintdef(oid, true) AS "Definition" FROM pg_constraint
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WHERE (conrelid::regclass::text = 'adt_col' OR confrelid::regclass::text = 'adt_col') ORDER BY 1;
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Referencing Table | Definition
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---------------------------------------------------------------------
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adt_col | UNIQUE (a)
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adt_ref | FOREIGN KEY (a) REFERENCES adt_col(a)
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(2 rows)
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SELECT * FROM adt_table ORDER BY 1;
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a | b
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---------------------------------------------------------------------
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1 | 2
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3 | 4
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5 | 6
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(3 rows)
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SELECT * FROM adt_col ORDER BY 1;
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a | b
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---------------------------------------------------------------------
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3 | 4
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5 | 6
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7 | 8
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(3 rows)
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SELECT * FROM adt_ref ORDER BY 1;
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a
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---------------------------------------------------------------------
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3
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5
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(2 rows)
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BEGIN;
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INSERT INTO adt_table SELECT x, x+1 FROM generate_series(1, 1000) x;
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SELECT alter_distributed_table('adt_table', distribution_column:='a');
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NOTICE: creating a new table for mx_alter_distributed_table.adt_table
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NOTICE: moving the data of mx_alter_distributed_table.adt_table
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NOTICE: dropping the old mx_alter_distributed_table.adt_table
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NOTICE: renaming the new table to mx_alter_distributed_table.adt_table
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT COUNT(*) FROM adt_table;
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count
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---------------------------------------------------------------------
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1003
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(1 row)
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END;
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SELECT table_name, citus_table_type, distribution_column, shard_count FROM public.citus_tables WHERE table_name::text = 'adt_table';
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table_name | citus_table_type | distribution_column | shard_count
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---------------------------------------------------------------------
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adt_table | distributed | a | 6
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(1 row)
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-- test procedure colocation is preserved with alter_distributed_table
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CREATE TABLE test_proc_colocation_0 (a float8);
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SELECT create_distributed_table('test_proc_colocation_0', 'a');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE OR REPLACE procedure proc_0(dist_key float8)
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LANGUAGE plpgsql
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AS $$
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DECLARE
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res INT := 0;
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BEGIN
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INSERT INTO test_proc_colocation_0 VALUES (dist_key);
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SELECT count(*) INTO res FROM test_proc_colocation_0;
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RAISE NOTICE 'Res: %', res;
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COMMIT;
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END;$$;
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SELECT create_distributed_function('proc_0(float8)', 'dist_key', 'test_proc_colocation_0' );
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create_distributed_function
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---------------------------------------------------------------------
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(1 row)
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SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
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logicalrelid | colocationid
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---------------------------------------------------------------------
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test_proc_colocation_0 | 1410002
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(1 row)
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SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0');
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proname | colocationid
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---------------------------------------------------------------------
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proc_0 | 1410002
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(1 row)
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SET client_min_messages TO DEBUG1;
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CALL proc_0(1.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 1
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DETAIL: from localhost:xxxxx
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RESET client_min_messages;
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-- shardCount is not null && list_length(colocatedTableList) = 1
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SELECT alter_distributed_table('test_proc_colocation_0', shard_count:= 8);
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SET client_min_messages TO DEBUG1;
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CALL proc_0(1.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 2
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DETAIL: from localhost:xxxxx
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RESET client_min_messages;
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SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
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logicalrelid | colocationid
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---------------------------------------------------------------------
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test_proc_colocation_0 | 1410003
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(1 row)
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SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0');
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proname | colocationid
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---------------------------------------------------------------------
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proc_0 | 1410003
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(1 row)
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-- colocatewith is not null && list_length(colocatedTableList) = 1
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SELECT alter_distributed_table('test_proc_colocation_0', shard_count:= 4);
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE TABLE test_proc_colocation_1 (a float8);
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SELECT create_distributed_table('test_proc_colocation_1', 'a', colocate_with := 'none');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT alter_distributed_table('test_proc_colocation_0', colocate_with := 'test_proc_colocation_1');
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SET client_min_messages TO DEBUG1;
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CALL proc_0(1.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 3
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DETAIL: from localhost:xxxxx
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RESET client_min_messages;
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SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
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logicalrelid | colocationid
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---------------------------------------------------------------------
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test_proc_colocation_0 | 1410004
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(1 row)
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SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0');
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proname | colocationid
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---------------------------------------------------------------------
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proc_0 | 1410004
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(1 row)
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-- shardCount is not null && cascade_to_colocated is true
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SELECT alter_distributed_table('test_proc_colocation_0', shard_count:= 8, cascade_to_colocated := true);
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_1
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SET client_min_messages TO DEBUG1;
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CALL proc_0(1.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 4
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DETAIL: from localhost:xxxxx
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RESET client_min_messages;
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SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
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logicalrelid | colocationid
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---------------------------------------------------------------------
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test_proc_colocation_0 | 1410003
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(1 row)
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SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0');
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proname | colocationid
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---------------------------------------------------------------------
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proc_0 | 1410003
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(1 row)
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-- colocatewith is not null && cascade_to_colocated is true
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SELECT alter_distributed_table('test_proc_colocation_0', shard_count:= 4, cascade_to_colocated := true);
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_1
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE TABLE test_proc_colocation_2 (a float8);
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SELECT create_distributed_table('test_proc_colocation_2', 'a', colocate_with := 'none');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT alter_distributed_table('test_proc_colocation_0', colocate_with := 'test_proc_colocation_2', cascade_to_colocated := true);
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_1
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SET client_min_messages TO DEBUG1;
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CALL proc_0(1.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 5
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DETAIL: from localhost:xxxxx
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RESET client_min_messages;
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SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
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logicalrelid | colocationid
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---------------------------------------------------------------------
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test_proc_colocation_0 | 1410005
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(1 row)
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SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0');
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proname | colocationid
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---------------------------------------------------------------------
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proc_0 | 1410005
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(1 row)
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-- try a case with more than one procedure
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CREATE OR REPLACE procedure proc_1(dist_key float8)
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LANGUAGE plpgsql
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AS $$
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DECLARE
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res INT := 0;
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BEGIN
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INSERT INTO test_proc_colocation_0 VALUES (dist_key);
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SELECT count(*) INTO res FROM test_proc_colocation_0;
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RAISE NOTICE 'Res: %', res;
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COMMIT;
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END;$$;
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SELECT create_distributed_function('proc_1(float8)', 'dist_key', 'test_proc_colocation_0' );
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create_distributed_function
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---------------------------------------------------------------------
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(1 row)
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SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
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logicalrelid | colocationid
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---------------------------------------------------------------------
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test_proc_colocation_0 | 1410005
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(1 row)
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SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0', 'proc_1') ORDER BY proname;
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proname | colocationid
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---------------------------------------------------------------------
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proc_0 | 1410005
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proc_1 | 1410005
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(2 rows)
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SET client_min_messages TO DEBUG1;
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CALL proc_0(1.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 6
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DETAIL: from localhost:xxxxx
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CALL proc_1(2.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 7
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DETAIL: from localhost:xxxxx
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RESET client_min_messages;
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SELECT alter_distributed_table('test_proc_colocation_0', shard_count:= 8, cascade_to_colocated := true);
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_2
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_2
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_2
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_2
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NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_1
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NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_1
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alter_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SET client_min_messages TO DEBUG1;
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CALL proc_0(1.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 8
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DETAIL: from localhost:xxxxx
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CALL proc_1(2.0);
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DEBUG: pushing down the procedure
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NOTICE: Res: 9
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DETAIL: from localhost:xxxxx
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RESET client_min_messages;
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SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
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logicalrelid | colocationid
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|
---------------------------------------------------------------------
|
|
test_proc_colocation_0 | 1410003
|
|
(1 row)
|
|
|
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SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0', 'proc_1') ORDER BY proname;
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|
proname | colocationid
|
|
---------------------------------------------------------------------
|
|
proc_0 | 1410003
|
|
proc_1 | 1410003
|
|
(2 rows)
|
|
|
|
-- case which shouldn't preserve colocation for now
|
|
-- shardCount is not null && cascade_to_colocated is false
|
|
SELECT alter_distributed_table('test_proc_colocation_0', shard_count:= 18, cascade_to_colocated := false);
|
|
NOTICE: creating a new table for mx_alter_distributed_table.test_proc_colocation_0
|
|
NOTICE: moving the data of mx_alter_distributed_table.test_proc_colocation_0
|
|
NOTICE: dropping the old mx_alter_distributed_table.test_proc_colocation_0
|
|
NOTICE: renaming the new table to mx_alter_distributed_table.test_proc_colocation_0
|
|
alter_distributed_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT logicalrelid, colocationid FROM pg_dist_partition WHERE logicalrelid::regclass::text IN ('test_proc_colocation_0');
|
|
logicalrelid | colocationid
|
|
---------------------------------------------------------------------
|
|
test_proc_colocation_0 | 1410006
|
|
(1 row)
|
|
|
|
SELECT proname, colocationid FROM pg_proc JOIN citus.pg_dist_object ON pg_proc.oid = citus.pg_dist_object.objid WHERE proname IN ('proc_0', 'proc_1') ORDER BY proname;
|
|
proname | colocationid
|
|
---------------------------------------------------------------------
|
|
proc_0 | 1410003
|
|
proc_1 | 1410003
|
|
(2 rows)
|
|
|
|
SET client_min_messages TO WARNING;
|
|
DROP SCHEMA mx_alter_distributed_table CASCADE;
|