mirror of https://github.com/citusdata/citus.git
149 lines
7.9 KiB
SQL
149 lines
7.9 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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\if :server_version_above_eleven
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\else
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\q
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\endif
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CREATE SCHEMA alter_table_set_access_method;
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SET search_path TO alter_table_set_access_method;
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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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SELECT public.run_command_on_coordinator_and_workers($Q$
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CREATE FUNCTION fake_am_handler(internal)
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RETURNS table_am_handler
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AS 'citus'
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LANGUAGE C;
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CREATE ACCESS METHOD fake_am TYPE TABLE HANDLER fake_am_handler;
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$Q$);
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CREATE TABLE dist_table (a INT, b INT);
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SELECT create_distributed_table ('dist_table', 'a');
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INSERT INTO dist_table VALUES (1, 1), (2, 2), (3, 3);
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SELECT "Name", "Access Method" FROM public.citus_tables WHERE "Name"::text = 'dist_table' ORDER BY 1;
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SELECT alter_table_set_access_method('dist_table', 'columnar');
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SELECT "Name", "Access Method" FROM public.citus_tables WHERE "Name"::text = 'dist_table' 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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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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SELECT create_distributed_table('partitioned_table', 'id');
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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, "Access Method" 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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-- altering partitioned tables' access methods is not supported
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SELECT alter_table_set_access_method('partitioned_table', 'columnar');
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-- test altering the partition's access method
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SELECT alter_table_set_access_method('partitioned_table_1_5', 'columnar');
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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, "Access Method" 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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-- try to compress partitions with an integer partition column
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CALL alter_old_partitions_set_access_method('partitioned_table', '2021-01-01', 'columnar');
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CREATE TABLE time_partitioned (event_time timestamp, event int) partition by range (event_time);
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SELECT create_distributed_table('time_partitioned', 'event_time');
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CREATE TABLE time_partitioned_d00 PARTITION OF time_partitioned FOR VALUES FROM ('2000-01-01') TO ('2009-12-31');
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CREATE TABLE time_partitioned_d10 PARTITION OF time_partitioned FOR VALUES FROM ('2010-01-01') TO ('2019-12-31');
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CREATE TABLE time_partitioned_d20 PARTITION OF time_partitioned FOR VALUES FROM ('2020-01-01') TO ('2029-12-31');
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INSERT INTO time_partitioned VALUES ('2005-01-01', 1);
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INSERT INTO time_partitioned VALUES ('2015-01-01', 2);
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INSERT INTO time_partitioned VALUES ('2025-01-01', 3);
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\set VERBOSITY terse
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-- compress no partitions
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CALL alter_old_partitions_set_access_method('time_partitioned', '1999-01-01', 'columnar');
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SELECT partition, access_method FROM time_partitions WHERE parent_table = 'time_partitioned'::regclass ORDER BY partition::text;
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SELECT event FROM time_partitioned ORDER BY 1;
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-- compress 2 old partitions
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CALL alter_old_partitions_set_access_method('time_partitioned', '2021-01-01', 'columnar');
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SELECT partition, access_method FROM time_partitions WHERE parent_table = 'time_partitioned'::regclass ORDER BY partition::text;
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SELECT event FROM time_partitioned ORDER BY 1;
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-- will not be compressed again
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CALL alter_old_partitions_set_access_method('time_partitioned', '2021-01-01', 'columnar');
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SELECT partition, access_method FROM time_partitions WHERE parent_table = 'time_partitioned'::regclass ORDER BY partition::text;
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SELECT event FROM time_partitioned ORDER BY 1;
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-- back to heap
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CALL alter_old_partitions_set_access_method('time_partitioned', '2021-01-01', 'heap');
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SELECT partition, access_method FROM time_partitions WHERE parent_table = 'time_partitioned'::regclass ORDER BY partition::text;
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SELECT event FROM time_partitioned ORDER BY 1;
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\set VERBOSITY default
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DROP TABLE time_partitioned;
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-- test altering a table with index to columnar
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-- the index will be dropped
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CREATE TABLE index_table (a INT) USING heap;
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CREATE INDEX idx1 ON index_table (a);
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-- also create an index with statistics
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CREATE INDEX idx2 ON index_table ((a+1));
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ALTER INDEX idx2 ALTER COLUMN 1 SET STATISTICS 300;
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SELECT indexname FROM pg_indexes WHERE schemaname = 'alter_table_set_access_method' AND tablename = 'index_table';
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SELECT a.amname FROM pg_class c, pg_am a where c.relname = 'index_table' AND c.relnamespace = 'alter_table_set_access_method'::regnamespace AND c.relam = a.oid;
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SELECT alter_table_set_access_method('index_table', 'columnar');
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SELECT indexname FROM pg_indexes WHERE schemaname = 'alter_table_set_access_method' AND tablename = 'index_table';
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SELECT a.amname FROM pg_class c, pg_am a where c.relname = 'index_table' AND c.relnamespace = 'alter_table_set_access_method'::regnamespace AND c.relam = a.oid;
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-- test different table types
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SET client_min_messages to WARNING;
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SELECT 1 FROM master_add_node('localhost', :master_port, groupId := 0);
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SET client_min_messages to DEFAULT;
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CREATE TABLE table_type_dist (a INT);
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SELECT create_distributed_table('table_type_dist', 'a');
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CREATE TABLE table_type_ref (a INT);
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SELECT create_reference_table('table_type_ref');
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CREATE TABLE table_type_citus_local(a INT);
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SELECT create_citus_local_table('table_type_citus_local');
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CREATE TABLE table_type_pg_local (a INT);
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count", "Access Method" FROM public.citus_tables WHERE "Name"::text LIKE 'table\_type%' ORDER BY 1;
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SELECT c.relname, a.amname FROM pg_class c, pg_am a where c.relname SIMILAR TO 'table_type\D*' AND c.relnamespace = 'alter_table_set_access_method'::regnamespace AND c.relam = a.oid;
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SELECT alter_table_set_access_method('table_type_dist', 'fake_am');
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SELECT alter_table_set_access_method('table_type_ref', 'fake_am');
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SELECT alter_table_set_access_method('table_type_pg_local', 'fake_am');
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SELECT alter_table_set_access_method('table_type_citus_local', 'fake_am');
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SELECT "Name", "Citus Table Type", "Distribution Column", "Shard Count", "Access Method" FROM public.citus_tables WHERE "Name"::text LIKE 'table\_type%' ORDER BY 1;
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SELECT c.relname, a.amname FROM pg_class c, pg_am a where c.relname SIMILAR TO 'table_type\D*' AND c.relnamespace = 'alter_table_set_access_method'::regnamespace AND c.relam = a.oid;
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-- test when the parent of a partition has foreign key to a reference table
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create table test_pk(n int primary key);
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create table test_fk_p(i int references test_pk(n)) partition by range(i);
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create table test_fk_p0 partition of test_fk_p for values from (0) to (10);
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create table test_fk_p1 partition of test_fk_p for values from (10) to (20);
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select alter_table_set_access_method('test_fk_p1', 'columnar');
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-- test changing into same access method
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CREATE TABLE same_access_method (a INT);
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SELECT alter_table_set_access_method('same_access_method', 'heap');
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SET client_min_messages TO WARNING;
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DROP SCHEMA alter_table_set_access_method CASCADE;
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SELECT 1 FROM master_remove_node('localhost', :master_port);
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