mirror of https://github.com/citusdata/citus.git
119 lines
2.6 KiB
SQL
119 lines
2.6 KiB
SQL
-- Tests related to distributed DDL commands on mx cluster
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SELECT * FROM mx_ddl_table ORDER BY key;
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-- CREATE INDEX
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CREATE INDEX ddl_test_index ON mx_ddl_table(value);
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CREATE INDEX CONCURRENTLY ddl_test_concurrent_index ON mx_ddl_table(value);
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-- ADD COLUMN
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ALTER TABLE mx_ddl_table ADD COLUMN version INTEGER;
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-- SET DEFAULT
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ALTER TABLE mx_ddl_table ALTER COLUMN version SET DEFAULT 1;
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SELECT master_modify_multiple_shards('UPDATE mx_ddl_table SET version=0.1 WHERE version IS NULL');
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-- SET NOT NULL
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ALTER TABLE mx_ddl_table ALTER COLUMN version SET NOT NULL;
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-- See that the changes are applied on coordinator, worker tables and shards
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\d mx_ddl_table
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\c - - - :worker_1_port
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\d mx_ddl_table
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\d mx_ddl_table_1220088
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\c - - - :worker_2_port
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\d mx_ddl_table
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\d mx_ddl_table_1220089
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INSERT INTO mx_ddl_table VALUES (37, 78, 2);
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INSERT INTO mx_ddl_table VALUES (38, 78);
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-- Switch to the coordinator
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\c - - - :master_port
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-- SET DATA TYPE
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ALTER TABLE mx_ddl_table ALTER COLUMN version SET DATA TYPE double precision;
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INSERT INTO mx_ddl_table VALUES (78, 83, 2.1);
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\c - - - :worker_1_port
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SELECT * FROM mx_ddl_table ORDER BY key;
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-- Switch to the coordinator
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\c - - - :master_port
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-- DROP INDEX
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DROP INDEX ddl_test_index;
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DROP INDEX CONCURRENTLY ddl_test_concurrent_index;
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-- DROP DEFAULT
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ALTER TABLE mx_ddl_table ALTER COLUMN version DROP DEFAULT;
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-- DROP NOT NULL
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ALTER TABLE mx_ddl_table ALTER COLUMN version DROP NOT NULL;
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-- DROP COLUMN
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ALTER TABLE mx_ddl_table DROP COLUMN version;
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-- See that the changes are applied on coordinator, worker tables and shards
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\d mx_ddl_table
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\c - - - :worker_1_port
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\d mx_ddl_table
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\d mx_ddl_table_1220088
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\c - - - :worker_2_port
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\d mx_ddl_table
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\d mx_ddl_table_1220089
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-- Show that DDL commands are done within a two-phase commit transaction
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\c - - - :master_port
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SET client_min_messages TO debug2;
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CREATE INDEX ddl_test_index ON mx_ddl_table(value);
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RESET client_min_messages;
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DROP INDEX ddl_test_index;
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-- show that sequences owned by mx tables result in unique values
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SET citus.shard_replication_factor TO 1;
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SET citus.shard_count TO 4;
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SET citus.replication_model TO streaming;
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CREATE TABLE mx_sequence(key INT, value BIGSERIAL);
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SELECT create_distributed_table('mx_sequence', 'key');
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\c - - - :worker_1_port
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SELECT groupid FROM pg_dist_local_group;
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SELECT * FROM mx_sequence_value_seq;
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\c - - - :worker_2_port
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SELECT groupid FROM pg_dist_local_group;
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SELECT * FROM mx_sequence_value_seq;
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\c - - - :master_port
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-- the type of sequences can't be changed
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ALTER TABLE mx_sequence ALTER value TYPE BIGINT;
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ALTER TABLE mx_sequence ALTER value TYPE INT;
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