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https://github.com/timescale/timescaledb.git
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4daeb06eee
This patch does refactoring necessary to support execution of DDL commands on remote servers. Basically it extends cross module api with ddl_command_start, ddl_command_end and sql_drop functions. Variable hypertables_list added to ProcessUtilityArg. It is used to keep a list of found hypertables during Utility/DDL statement parsing. This information and information gathered from other hook functions will be used to distinct distributed hypertables and forward DDL commands to any remote servers associated with them.
123 lines
3.7 KiB
PL/PgSQL
123 lines
3.7 KiB
PL/PgSQL
-- This file and its contents are licensed under the Timescale License.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-TIMESCALE for a copy of the license.
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\c :TEST_DBNAME :ROLE_SUPERUSER
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CREATE OR REPLACE FUNCTION ts_test_ddl_command_hook_reg() RETURNS VOID
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AS :TSL_MODULE_PATHNAME, 'ts_test_ddl_command_hook_reg'
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LANGUAGE C VOLATILE STRICT;
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CREATE OR REPLACE FUNCTION ts_test_ddl_command_hook_unreg() RETURNS VOID
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AS :TSL_MODULE_PATHNAME, 'ts_test_ddl_command_hook_unreg'
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LANGUAGE C VOLATILE STRICT;
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SET client_min_messages TO ERROR;
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DROP SCHEMA IF EXISTS htable_schema CASCADE;
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DROP TABLE IF EXISTS htable;
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DROP TABLE IF EXISTS non_htable;
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SET client_min_messages TO NOTICE;
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CREATE SCHEMA htable_schema;
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-- Install test hooks
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SELECT ts_test_ddl_command_hook_reg();
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CREATE TABLE htable(time timestamptz, device int, color int CONSTRAINT color_check CHECK (color > 0), temp float);
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CREATE UNIQUE INDEX htable_pk ON htable(time);
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-- CREATE TABLE
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SELECT * FROM create_hypertable('htable', 'time');
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SELECT * FROM test.show_columns('htable');
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SELECT * FROM test.show_constraints('htable');
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SELECT * FROM test.show_indexes('htable');
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-- ADD CONSTRAINT
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ALTER TABLE htable ADD CONSTRAINT device_check CHECK (device > 0);
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SELECT * FROM test.show_constraints('htable');
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-- DROP CONSTRAINT
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ALTER TABLE htable DROP CONSTRAINT device_check;
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SELECT * FROM test.show_constraints('htable');
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-- DROP COLUMN
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ALTER TABLE htable DROP COLUMN color;
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SELECT * FROM test.show_columns('htable');
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-- ADD COLUMN
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ALTER TABLE htable ADD COLUMN description text;
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SELECT * FROM test.show_columns('htable');
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-- CREATE INDEX
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CREATE INDEX htable_description_idx ON htable (description);
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SELECT * FROM test.show_indexes('htable');
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-- CREATE/DROP TRIGGER
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CREATE OR REPLACE FUNCTION test_trigger()
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RETURNS TRIGGER LANGUAGE PLPGSQL AS
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$BODY$
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BEGIN
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RETURN OLD;
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END
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$BODY$;
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CREATE TRIGGER htable_trigger_test
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BEFORE INSERT ON htable
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FOR EACH ROW EXECUTE PROCEDURE test_trigger();
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DROP TRIGGER htable_trigger_test on htable;
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DROP FUNCTION test_trigger();
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-- CLUSTER, TRUNCATE, REINDEX, VACUUM (should not call event hooks)
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CREATE TABLE non_htable (id int);
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CLUSTER htable USING htable_description_idx;
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TRUNCATE non_htable, htable;
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REINDEX TABLE htable;
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VACUUM htable;
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-- ALTER TABLE
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ALTER TABLE htable ADD CONSTRAINT temp_check CHECK (temp > 0.0);
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SELECT * FROM test.show_constraints('htable');
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ALTER TABLE htable RENAME CONSTRAINT temp_check TO temp_chk;
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ALTER TABLE htable RENAME COLUMN description TO descr;
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ALTER INDEX htable_description_idx RENAME to htable_descr_idx;
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ALTER TABLE htable SET SCHEMA htable_schema;
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ALTER TABLE htable_schema.htable SET SCHEMA public;
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ALTER TABLE public.htable RENAME TO htable2;
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ALTER TABLE htable2 RENAME TO htable;
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-- DROP INDEX, TABLE
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\set ON_ERROR_STOP 0
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DROP INDEX htable_description_idx, htable_pk;
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DROP TABLE htable, non_htable;
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\set ON_ERROR_STOP 1
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DROP INDEX htable_descr_idx;
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DROP TABLE htable;
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DROP TABLE non_htable;
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-- DROP CASCADE cases
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-- DROP schema
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CREATE TABLE htable_schema.non_htable (id int);
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CREATE TABLE htable_schema.htable(time timestamptz, device int, color int, temp float);
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SELECT * FROM create_hypertable('htable_schema.htable', 'time');
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DROP SCHEMA htable_schema CASCADE;
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-- DROP column cascades to index drop
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CREATE TABLE htable(time timestamptz, device int, color int, temp float);
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SELECT * FROM create_hypertable('htable', 'time');
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CREATE INDEX htable_device_idx ON htable (device);
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ALTER TABLE htable DROP COLUMN device;
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DROP TABLE htable;
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-- DROP foreign key
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CREATE TABLE non_htable (id int PRIMARY KEY);
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CREATE TABLE htable(time timestamptz, device int REFERENCES non_htable(id));
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SELECT * FROM create_hypertable('htable', 'time');
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DROP TABLE non_htable CASCADE;
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-- cleanup
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SELECT ts_test_ddl_command_hook_unreg();
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