mirror of https://github.com/citusdata/citus.git
277 lines
16 KiB
SQL
277 lines
16 KiB
SQL
SHOW server_version \gset
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SELECT substring(:'server_version', '\d+')::int > 11 AS server_version_above_eleven;
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\gset
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CREATE SCHEMA alter_distributed_table;
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SET search_path TO alter_distributed_table;
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SET citus.shard_count TO 4;
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SET citus.shard_replication_factor TO 1;
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CREATE TABLE dist_table (a INT, b INT);
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SELECT create_distributed_table ('dist_table', 'a', colocate_with := 'none');
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INSERT INTO dist_table VALUES (1, 1), (2, 2), (3, 3);
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CREATE TABLE colocation_table (a INT, b INT);
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SELECT create_distributed_table ('colocation_table', 'a', colocate_with := 'none');
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CREATE TABLE colocation_table_2 (a INT, b INT);
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SELECT create_distributed_table ('colocation_table_2', 'a', colocate_with := 'none');
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2');
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SELECT STRING_AGG("Name"::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2') GROUP BY "Colocation ID" ORDER BY 1;
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-- test altering distribution column
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SELECT alter_distributed_table('dist_table', distribution_column := 'b');
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2');
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SELECT STRING_AGG("Name"::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2') GROUP BY "Colocation ID" ORDER BY 1;
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-- test altering shard count
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SELECT alter_distributed_table('dist_table', shard_count := 6);
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2');
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SELECT STRING_AGG("Name"::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2') GROUP BY "Colocation ID" ORDER BY 1;
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-- test altering colocation, note that shard count will also change
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SELECT alter_distributed_table('dist_table', colocate_with := 'alter_distributed_table.colocation_table');
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2');
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SELECT STRING_AGG("Name"::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2') GROUP BY "Colocation ID" ORDER BY 1;
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-- test altering shard count with cascading, note that the colocation will be kept
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SELECT alter_distributed_table('dist_table', shard_count := 8, cascade_to_colocated := true);
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2');
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SELECT STRING_AGG("Name"::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2') GROUP BY "Colocation ID" ORDER BY 1;
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-- test altering shard count without cascading, note that the colocation will be broken
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SELECT alter_distributed_table('dist_table', shard_count := 10, cascade_to_colocated := false);
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2');
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SELECT STRING_AGG("Name"::text, ', ' ORDER BY 1) AS "Colocation Groups" FROM public.citus_tables
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WHERE "Name" IN ('dist_table', 'colocation_table', 'colocation_table_2') GROUP BY "Colocation ID" ORDER BY 1;
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-- test partitions
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CREATE TABLE partitioned_table (id INT, a INT) PARTITION BY RANGE (id);
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SELECT create_distributed_table('partitioned_table', 'id', colocate_with := 'none');
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CREATE TABLE partitioned_table_1_5 PARTITION OF partitioned_table FOR VALUES FROM (1) TO (5);
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CREATE TABLE partitioned_table_6_10 PARTITION OF partitioned_table FOR VALUES FROM (6) TO (10);
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INSERT INTO partitioned_table VALUES (2, 12), (7, 2);
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SELECT logicalrelid::text FROM pg_dist_partition WHERE logicalrelid::regclass::text LIKE 'partitioned\_table%' ORDER BY 1;
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SELECT run_command_on_workers($$SELECT COUNT(*) FROM pg_catalog.pg_class WHERE relname LIKE 'partitioned\_table%'$$);
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SELECT inhrelid::regclass::text FROM pg_catalog.pg_inherits WHERE inhparent = 'partitioned_table'::regclass ORDER BY 1;
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SELECT "Name"::text, "Distribution Column", "Shard Count" FROM public.citus_tables WHERE "Name"::text LIKE 'partitioned\_table%' ORDER BY 1;
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SELECT * FROM partitioned_table ORDER BY 1, 2;
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SELECT * FROM partitioned_table_1_5 ORDER BY 1, 2;
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SELECT * FROM partitioned_table_6_10 ORDER BY 1, 2;
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-- test altering the parent table
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SELECT alter_distributed_table('partitioned_table', shard_count := 10, distribution_column := 'a');
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-- test altering the partition
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SELECT alter_distributed_table('partitioned_table_1_5', shard_count := 10, distribution_column := 'a');
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SELECT logicalrelid::text FROM pg_dist_partition WHERE logicalrelid::regclass::text LIKE 'partitioned\_table%' ORDER BY 1;
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SELECT run_command_on_workers($$SELECT COUNT(*) FROM pg_catalog.pg_class WHERE relname LIKE 'partitioned\_table%'$$);
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SELECT inhrelid::regclass::text FROM pg_catalog.pg_inherits WHERE inhparent = 'partitioned_table'::regclass ORDER BY 1;
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SELECT "Name"::text, "Distribution Column", "Shard Count" FROM public.citus_tables WHERE "Name"::text LIKE 'partitioned\_table%' ORDER BY 1;
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SELECT * FROM partitioned_table ORDER BY 1, 2;
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SELECT * FROM partitioned_table_1_5 ORDER BY 1, 2;
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SELECT * FROM partitioned_table_6_10 ORDER BY 1, 2;
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-- test references
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CREATE TABLE referenced_dist_table (a INT UNIQUE);
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CREATE TABLE referenced_ref_table (a INT UNIQUE);
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CREATE TABLE table_with_references (a1 INT UNIQUE REFERENCES referenced_dist_table(a), a2 INT REFERENCES referenced_ref_table(a));
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CREATE TABLE referencing_dist_table (a INT REFERENCES table_with_references(a1));
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SELECT create_distributed_table('referenced_dist_table', 'a', colocate_with:='none');
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SELECT create_reference_table('referenced_ref_table');
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SELECT create_distributed_table('table_with_references', 'a1', colocate_with:='referenced_dist_table');
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SELECT create_distributed_table('referencing_dist_table', 'a', colocate_with:='referenced_dist_table');
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SET client_min_messages TO WARNING;
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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 = 'table_with_references' OR confrelid::regclass::text = 'table_with_references') AND contype = 'f' ORDER BY 1;
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SELECT alter_distributed_table('table_with_references', shard_count := 12, cascade_to_colocated := true);
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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 = 'table_with_references' OR confrelid::regclass::text = 'table_with_references') AND contype = 'f' ORDER BY 1;
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SELECT alter_distributed_table('table_with_references', shard_count := 10, cascade_to_colocated := false);
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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 = 'table_with_references' OR confrelid::regclass::text = 'table_with_references') AND contype = 'f' ORDER BY 1;
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-- check when multi shard modify mode is set to sequential
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SELECT alter_distributed_table('referenced_dist_table', colocate_with:='none');
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CREATE TABLE ref_to_dist_table(a INT REFERENCES referenced_dist_table(a));
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CREATE TABLE ref_to_ref_table(a INT REFERENCES referenced_ref_table(a));
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SELECT create_distributed_table('ref_to_dist_table', 'a', colocate_with:='referenced_dist_table');
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SELECT create_distributed_table('ref_to_ref_table', 'a', colocate_with:='none');
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-- alter a table referencing a reference table
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SELECT alter_distributed_table('ref_to_ref_table', shard_count:=6);
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-- let's create a table that is not colocated with a table that references a reference table
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CREATE TABLE col_with_ref_to_dist (a INT);
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SELECT create_distributed_table('col_with_ref_to_dist', 'a', colocate_with:='ref_to_dist_table');
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-- and create a table colocated with a table that references a reference table
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CREATE TABLE col_with_ref_to_ref (a INT);
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SELECT alter_distributed_table('ref_to_ref_table', colocate_with:='none');
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SELECT create_distributed_table('col_with_ref_to_ref', 'a', colocate_with:='ref_to_ref_table');
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-- alter a table colocated with a table referencing a reference table with cascading
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SELECT alter_distributed_table('col_with_ref_to_ref', shard_count:=8, cascade_to_colocated:=true);
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-- alter a table colocated with a table referencing a reference table without cascading
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SELECT alter_distributed_table('col_with_ref_to_ref', shard_count:=10, cascade_to_colocated:=false);
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-- alter a table not colocated with a table referencing a reference table with cascading
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SELECT alter_distributed_table('col_with_ref_to_dist', shard_count:=6, cascade_to_colocated:=true);
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\if :server_version_above_eleven
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-- test altering columnar table
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CREATE TABLE columnar_table (a INT) USING columnar;
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SELECT create_distributed_table('columnar_table', 'a', colocate_with:='none');
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SELECT "Name"::text, "Shard Count", "Access Method" FROM public.citus_tables WHERE "Name"::text = 'columnar_table';
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SELECT alter_distributed_table('columnar_table', shard_count:=6);
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SELECT "Name"::text, "Shard Count", "Access Method" FROM public.citus_tables WHERE "Name"::text = 'columnar_table';
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\endif
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-- test with metadata sync
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SET citus.replication_model TO 'streaming';
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SELECT start_metadata_sync_to_node('localhost', :worker_1_port);
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CREATE TABLE metadata_sync_table (a BIGSERIAL);
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SELECT create_distributed_table('metadata_sync_table', 'a', colocate_with:='none');
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SELECT alter_distributed_table('metadata_sync_table', shard_count:=6);
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SELECT alter_distributed_table('metadata_sync_table', shard_count:=8);
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SELECT "Name", "Shard Count" FROM public.citus_tables WHERE "Name"::text = 'metadata_sync_table';
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SET citus.replication_model TO DEFAULT;
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SELECT stop_metadata_sync_to_node('localhost', :worker_1_port);
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-- test complex cascade operations
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CREATE TABLE cas_1 (a INT UNIQUE);
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CREATE TABLE cas_2 (a INT UNIQUE);
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CREATE TABLE cas_3 (a INT UNIQUE);
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CREATE TABLE cas_4 (a INT UNIQUE);
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CREATE TABLE cas_par (a INT UNIQUE) PARTITION BY RANGE(a);
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CREATE TABLE cas_par_1 PARTITION OF cas_par FOR VALUES FROM (1) TO (4);
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CREATE TABLE cas_par_2 PARTITION OF cas_par FOR VALUES FROM (5) TO (8);
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CREATE TABLE cas_col (a INT UNIQUE);
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-- add foreign keys from and to partitions
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ALTER TABLE cas_par_1 ADD CONSTRAINT fkey_from_par_1 FOREIGN KEY (a) REFERENCES cas_1(a);
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ALTER TABLE cas_2 ADD CONSTRAINT fkey_to_par_1 FOREIGN KEY (a) REFERENCES cas_par_1(a);
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ALTER TABLE cas_par ADD CONSTRAINT fkey_from_par FOREIGN KEY (a) REFERENCES cas_3(a);
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ALTER TABLE cas_4 ADD CONSTRAINT fkey_to_par FOREIGN KEY (a) REFERENCES cas_par(a);
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-- distribute all the tables
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SELECT create_distributed_table('cas_1', 'a', colocate_with:='none');
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SELECT create_distributed_table('cas_3', 'a', colocate_with:='cas_1');
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SELECT create_distributed_table('cas_par', 'a', colocate_with:='cas_1');
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SELECT create_distributed_table('cas_2', 'a', colocate_with:='cas_1');
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SELECT create_distributed_table('cas_4', 'a', colocate_with:='cas_1');
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SELECT create_distributed_table('cas_col', 'a', colocate_with:='cas_1');
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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 = 'cas_par_1' OR confrelid::regclass::text = 'cas_par_1') ORDER BY 1, 2;
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SELECT inhrelid::regclass::text FROM pg_catalog.pg_inherits WHERE inhparent = 'cas_par'::regclass ORDER BY 1;
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-- alter the cas_col and cascade the change
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SELECT alter_distributed_table('cas_col', shard_count:=6, cascade_to_colocated:=true);
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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 = 'cas_par_1' OR confrelid::regclass::text = 'cas_par_1') ORDER BY 1, 2;
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SELECT inhrelid::regclass::text FROM pg_catalog.pg_inherits WHERE inhparent = 'cas_par'::regclass ORDER BY 1;
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SET client_min_messages TO DEFAULT;
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-- test changing dist column and colocating partitioned table without changing shard count
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CREATE TABLE col_table (a INT);
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SELECT create_distributed_table('col_table', 'a', colocate_with:='none');
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CREATE TABLE par_table (a BIGINT, b INT) PARTITION BY RANGE (a);
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SELECT create_distributed_table('par_table', 'a', colocate_with:='none');
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CREATE TABLE par_table_1 (a BIGINT, b INT);
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SELECT create_distributed_table('par_table_1', 'a', colocate_with:='par_table');
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ALTER TABLE par_table ATTACH PARTITION par_table_1 FOR VALUES FROM (1) TO (5);
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SELECT alter_distributed_table('par_table', distribution_column:='b', colocate_with:='col_table');
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-- test messages
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-- test nothing to change
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SELECT alter_distributed_table('dist_table');
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SELECT alter_distributed_table('dist_table', cascade_to_colocated := false);
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-- no operation UDF calls
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SELECT alter_distributed_table('dist_table', distribution_column := 'b');
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SELECT alter_distributed_table('dist_table', shard_count := 10);
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-- first colocate the tables, then try to re-colococate
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SELECT alter_distributed_table('dist_table', colocate_with := 'colocation_table');
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SELECT alter_distributed_table('dist_table', colocate_with := 'colocation_table');
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-- test some changes while keeping others same
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-- shouldn't error but should have notices about no-change parameters
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SELECT alter_distributed_table('dist_table', distribution_column:='b', shard_count:=4, cascade_to_colocated:=false);
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SELECT alter_distributed_table('dist_table', shard_count:=4, colocate_with:='colocation_table_2');
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SELECT alter_distributed_table('dist_table', colocate_with:='colocation_table_2', distribution_column:='a');
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-- test cascading distribution column, should error
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SELECT alter_distributed_table('dist_table', distribution_column := 'b', cascade_to_colocated := true);
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SELECT alter_distributed_table('dist_table', distribution_column := 'b', shard_count:=12, colocate_with:='colocation_table_2', cascade_to_colocated := true);
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-- test nothing to cascade
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SELECT alter_distributed_table('dist_table', cascade_to_colocated := true);
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-- test cascading colocate_with := 'none'
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SELECT alter_distributed_table('dist_table', colocate_with := 'none', cascade_to_colocated := true);
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-- test changing shard count of a colocated table without cascade_to_colocated, should error
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SELECT alter_distributed_table('dist_table', shard_count := 14);
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-- test changing shard count of a non-colocated table without cascade_to_colocated, shouldn't error
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SELECT alter_distributed_table('dist_table', colocate_with := 'none');
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SELECT alter_distributed_table('dist_table', shard_count := 14);
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-- test altering a table into colocating with a table but giving a different shard count
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SELECT alter_distributed_table('dist_table', colocate_with := 'colocation_table', shard_count := 16);
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-- test colocation with distribution columns with different data types
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CREATE TABLE different_type_table (a TEXT);
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SELECT create_distributed_table('different_type_table', 'a');
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SELECT alter_distributed_table('dist_table', colocate_with := 'different_type_table');
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SELECT alter_distributed_table('dist_table', distribution_column := 'a', colocate_with := 'different_type_table');
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-- test shard_count := 0
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SELECT alter_distributed_table('dist_table', shard_count := 0);
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-- test colocating with non-distributed table
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CREATE TABLE reference_table (a INT);
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SELECT create_reference_table('reference_table');
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SELECT alter_distributed_table('dist_table', colocate_with:='reference_table');
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-- test append table
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CREATE TABLE append_table (a INT);
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SELECT create_distributed_table('append_table', 'a', 'append');
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SELECT alter_distributed_table('append_table', shard_count:=6);
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SET client_min_messages TO WARNING;
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DROP SCHEMA alter_distributed_table CASCADE;
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