mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-18 03:23:37 +08:00
cbc5e60abe
Constraints with the NO INHERIT option does not make sense on a hypertable's root table since these will not be enforced. Previously, NO INHERIT constraints were blocked on chunks, and were thus not enforced until chunk creation time, allowing creation of NO INHERIT constraints on empty hypertables, but then causing failure at chunk-creation time. Instead, NO INHERIT constraints are now properly blocked at the hypertable level.
425 lines
14 KiB
SQL
425 lines
14 KiB
SQL
CREATE TABLE hyper (
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time BIGINT NOT NULL,
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device_id TEXT NOT NULL,
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 10)
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);
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SELECT * FROM create_hypertable('hyper', 'time', chunk_time_interval => 10);
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--check and not-null constraints are inherited through regular inheritance.
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\set ON_ERROR_STOP 0
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INSERT INTO hyper(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 9);
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INSERT INTO hyper(time, device_id,sensor_1) VALUES
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(1257987700000000000, NULL, 11);
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ALTER TABLE hyper ALTER COLUMN time DROP NOT NULL;
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ALTER TABLE ONLY hyper ALTER COLUMN sensor_1 SET NOT NULL;
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ALTER TABLE ONLY hyper ALTER COLUMN device_id DROP NOT NULL;
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\set ON_ERROR_STOP 1
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INSERT INTO hyper(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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INSERT INTO hyper(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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ALTER TABLE hyper ALTER COLUMN device_id DROP NOT NULL;
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INSERT INTO hyper(time, device_id,sensor_1) VALUES
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(1257987700000000000, NULL, 11);
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----------------------- UNIQUE CONSTRAINTS ------------------
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CREATE TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name (
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time BIGINT NOT NULL UNIQUE,
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device_id TEXT NOT NULL,
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 10)
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);
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SELECT * FROM create_hypertable('hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name', 'time', chunk_time_interval => 10);
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INSERT INTO hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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INSERT INTO hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name(time, device_id,sensor_1) VALUES
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(1257987800000000000, 'dev2', 11);
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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\set ON_ERROR_STOP 1
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-- Show constraints on main tables
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SELECT * FROM _timescaledb_catalog.chunk_constraint;
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SELECT * FROM _timescaledb_catalog.chunk_index;
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SELECT * FROM test.show_constraints('hyper');
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SELECT * FROM test.show_constraints('hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name');
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--should have unique constraint not just unique index
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_2_4_chunk');
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name DROP CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooooooooo_time_key;
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-- The constraint should have been removed from the chunk as well
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SELECT * FROM _timescaledb_catalog.chunk_constraint;
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-- The index should also have been removed
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SELECT * FROM _timescaledb_catalog.chunk_index;
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_2_4_chunk');
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--uniqueness not enforced
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INSERT INTO hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev3', 11);
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--shouldn't be able to create constraint
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name ADD CONSTRAINT hyper_unique_time_key UNIQUE (time);
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\set ON_ERROR_STOP 1
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DELETE FROM hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name WHERE device_id = 'dev3';
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-- Try multi-alter table statement with a constraint without a name
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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ADD CHECK (time > 0),
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ADD UNIQUE (time);
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SELECT * FROM _timescaledb_catalog.chunk_constraint;
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SELECT * FROM test.show_constraints('hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name');
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_2_4_chunk');
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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DROP CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooooooooo_time_key,
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DROP CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooooooo_time_check;
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SELECT * FROM _timescaledb_catalog.chunk_constraint;
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SELECT * FROM test.show_constraints('hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name');
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_2_4_chunk');
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CREATE UNIQUE INDEX hyper_unique_with_looooooooooooooooooooooooooooooooo_time_idx
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ON hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name (time);
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\set ON_ERROR_STOP 0
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-- Try adding constraint using existing index
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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ADD CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooooooooo_time_key UNIQUE
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USING INDEX hyper_unique_with_looooooooooooooooooooooooooooooooo_time_idx;
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\set ON_ERROR_STOP 1
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DROP INDEX hyper_unique_with_looooooooooooooooooooooooooooooooo_time_idx;
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--now can create
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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ADD CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooooooooo_time_key UNIQUE (time);
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_2_4_chunk');
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--test adding constraint with same name to different table -- should fail
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper
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ADD CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooooooooo_time_key UNIQUE (time);
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\set ON_ERROR_STOP 1
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--uniquness violation fails
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name(time, device_id,sensor_1)
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VALUES (1257987700000000000, 'dev2', 11);
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\set ON_ERROR_STOP 1
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--cannot create unique constraint on non-partition column
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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ADD CONSTRAINT hyper_unique_invalid UNIQUE (device_id);
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\set ON_ERROR_STOP 1
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----------------------- RENAME CONSTRAINT ------------------
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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RENAME CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooooooooo_time_key TO new_name;
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name *
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RENAME CONSTRAINT new_name TO new_name2;
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ALTER TABLE IF EXISTS hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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RENAME CONSTRAINT hyper_unique_with_looooooooooooooooooooooooooooo_sensor_1_check TO check_2;
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SELECT * FROM test.show_constraints('hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name');
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_2_4_chunk');
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SELECT * FROM _timescaledb_catalog.chunk_constraint;
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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RENAME CONSTRAINT new_name TO new_name2;
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ALTER TABLE hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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RENAME CONSTRAINT new_name2 TO check_2;
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ALTER TABLE ONLY hyper_unique_with_looooooooooooooooooooooooooooooooooooong_name
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RENAME CONSTRAINT new_name2 TO new_name;
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ALTER TABLE _timescaledb_internal._hyper_2_4_chunk
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RENAME CONSTRAINT "4_10_new_name2" TO new_name;
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\set ON_ERROR_STOP 1
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----------------------- PRIMARY KEY ------------------
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CREATE TABLE hyper_pk (
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time BIGINT NOT NULL PRIMARY KEY,
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device_id TEXT NOT NULL,
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 10)
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);
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SELECT * FROM create_hypertable('hyper_pk', 'time', chunk_time_interval => 10);
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INSERT INTO hyper_pk(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_pk(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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\set ON_ERROR_STOP 1
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--should have unique constraint not just unique index
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_3_6_chunk');
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ALTER TABLE hyper_pk DROP CONSTRAINT hyper_pk_pkey;
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_3_6_chunk');
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--uniqueness not enforced
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INSERT INTO hyper_pk(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev3', 11);
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--shouldn't be able to create pk
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_pk ADD CONSTRAINT hyper_pk_pkey PRIMARY KEY (time);
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\set ON_ERROR_STOP 1
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DELETE FROM hyper_pk WHERE device_id = 'dev3';
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--cannot create pk constraint on non-partition column
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_pk ADD CONSTRAINT hyper_pk_invalid PRIMARY KEY (device_id);
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\set ON_ERROR_STOP 1
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--now can create
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ALTER TABLE hyper_pk ADD CONSTRAINT hyper_pk_pkey PRIMARY KEY (time);
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_3_6_chunk');
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--test adding constraint with same name to different table -- should fail
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper ADD CONSTRAINT hyper_pk_pkey UNIQUE (time);
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\set ON_ERROR_STOP 1
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--uniquness violation fails
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_pk(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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\set ON_ERROR_STOP 1
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----------------------- FOREIGN KEY ------------------
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CREATE TABLE devices(
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device_id TEXT NOT NULL,
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PRIMARY KEY (device_id)
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);
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CREATE TABLE hyper_fk (
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time BIGINT NOT NULL PRIMARY KEY,
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device_id TEXT NOT NULL REFERENCES devices(device_id),
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 10)
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);
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SELECT * FROM create_hypertable('hyper_fk', 'time', chunk_time_interval => 10);
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--fail fk constraint
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_fk(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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\set ON_ERROR_STOP 1
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INSERT INTO devices VALUES ('dev2');
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INSERT INTO hyper_fk(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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--delete should fail
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\set ON_ERROR_STOP 0
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DELETE FROM devices;
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\set ON_ERROR_STOP 1
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ALTER TABLE hyper_fk DROP CONSTRAINT hyper_fk_device_id_fkey;
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--should now be able to add non-fk rows
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INSERT INTO hyper_fk(time, device_id,sensor_1) VALUES
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(1257987700000000001, 'dev3', 11);
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--can't add fk because of dev3 row
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_fk ADD CONSTRAINT hyper_fk_device_id_fkey
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FOREIGN KEY (device_id) REFERENCES devices(device_id);
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\set ON_ERROR_STOP 1
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DELETE FROM hyper_fk WHERE device_id = 'dev3';
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ALTER TABLE hyper_fk ADD CONSTRAINT hyper_fk_device_id_fkey
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FOREIGN KEY (device_id) REFERENCES devices(device_id);
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_fk(time, device_id,sensor_1) VALUES
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(1257987700000000002, 'dev3', 11);
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\set ON_ERROR_STOP 1
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_4_8_chunk');
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SELECT * FROM _timescaledb_catalog.chunk_constraint;
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--test CASCADE drop behavior
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DROP TABLE devices CASCADE;
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SELECT * FROM test.show_constraints('_timescaledb_internal._hyper_4_8_chunk');
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SELECT * FROM _timescaledb_catalog.chunk_constraint;
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--the fk went away.
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INSERT INTO hyper_fk(time, device_id,sensor_1) VALUES
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(1257987700000000002, 'dev3', 11);
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CREATE TABLE devices(
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device_id TEXT NOT NULL,
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PRIMARY KEY (device_id)
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);
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INSERT INTO devices VALUES ('dev2'), ('dev3');
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ALTER TABLE hyper_fk ADD CONSTRAINT hyper_fk_device_id_fkey
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FOREIGN KEY (device_id) REFERENCES devices(device_id);
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_fk(time, device_id,sensor_1) VALUES
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(1257987700000000003, 'dev4', 11);
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\set ON_ERROR_STOP 1
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--this tests that there are no extra chunk_constraints left on hyper_fk
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TRUNCATE hyper_fk;
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----------------------- FOREIGN KEY INTO A HYPERTABLE ------------------
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--FOREIGN KEY references into a hypertable are currently broken.
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--The referencing table will never find the corresponding row in the hypertable
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--since it will only search the parent. Thus any insert will result in an ERROR
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--TODO: block such foreign keys or fix. (Hard to block on create table so punting for now)
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CREATE TABLE hyper_for_ref (
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time BIGINT NOT NULL PRIMARY KEY,
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device_id TEXT NOT NULL,
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 10)
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);
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SELECT * FROM create_hypertable('hyper_for_ref', 'time', chunk_time_interval => 10);
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\set ON_ERROR_STOP 0
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CREATE TABLE referrer (
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time BIGINT NOT NULL REFERENCES hyper_for_ref(time)
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);
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\set ON_ERROR_STOP 1
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CREATE TABLE referrer2 (
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time BIGINT NOT NULL
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);
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\set ON_ERROR_STOP 0
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ALTER TABLE referrer2 ADD CONSTRAINT hyper_fk_device_id_fkey
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FOREIGN KEY (time) REFERENCES hyper_for_ref(time);
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\set ON_ERROR_STOP 1
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----------------------- EXCLUSION CONSTRAINT ------------------
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CREATE TABLE hyper_ex (
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time BIGINT,
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device_id TEXT NOT NULL REFERENCES devices(device_id),
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 10),
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canceled boolean DEFAULT false,
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EXCLUDE USING btree (
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time WITH =, device_id WITH =
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) WHERE (not canceled)
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);
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SELECT * FROM create_hypertable('hyper_ex', 'time', chunk_time_interval=>_timescaledb_internal.interval_to_usec('1 month'));
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INSERT INTO hyper_ex(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_ex(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 12);
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\set ON_ERROR_STOP 1
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ALTER TABLE hyper_ex DROP CONSTRAINT hyper_ex_time_device_id_excl;
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--can now add
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INSERT INTO hyper_ex(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 12);
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--cannot add because of conflicts
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_ex ADD CONSTRAINT hyper_ex_time_device_id_excl
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EXCLUDE USING btree (
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time WITH =, device_id WITH =
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) WHERE (not canceled)
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;
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\set ON_ERROR_STOP 1
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DELETE FROM hyper_ex WHERE sensor_1 = 12;
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ALTER TABLE hyper_ex ADD CONSTRAINT hyper_ex_time_device_id_excl
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EXCLUDE USING btree (
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time WITH =, device_id WITH =
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) WHERE (not canceled)
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;
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\set ON_ERROR_STOP 0
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INSERT INTO hyper_ex(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 12);
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\set ON_ERROR_STOP 1
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--cannot add exclusion constraint without partition key.
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CREATE TABLE hyper_ex_invalid (
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time BIGINT,
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device_id TEXT NOT NULL REFERENCES devices(device_id),
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 10),
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canceled boolean DEFAULT false,
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EXCLUDE USING btree (
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device_id WITH =
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) WHERE (not canceled)
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);
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\set ON_ERROR_STOP 0
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SELECT * FROM create_hypertable('hyper_ex_invalid', 'time', chunk_time_interval=>_timescaledb_internal.interval_to_usec('1 month'));
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\set ON_ERROR_STOP 1
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--- NO INHERIT constraints (not allowed) ----
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CREATE TABLE hyper_noinherit (
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time BIGINT,
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sensor_1 NUMERIC NULL DEFAULT 1 CHECK (sensor_1 > 0) NO INHERIT
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);
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SELECT * FROM test.show_constraints('hyper_noinherit');
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\set ON_ERROR_STOP 0
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SELECT * FROM create_hypertable('hyper_noinherit', 'time', chunk_time_interval=>_timescaledb_internal.interval_to_usec('1 month'));
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\set ON_ERROR_STOP 1
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CREATE TABLE hyper_noinherit_alter (
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time BIGINT,
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sensor_1 NUMERIC NULL DEFAULT 1
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);
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SELECT * FROM create_hypertable('hyper_noinherit_alter', 'time', chunk_time_interval=>_timescaledb_internal.interval_to_usec('1 month'));
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\set ON_ERROR_STOP 0
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ALTER TABLE hyper_noinherit_alter ADD CONSTRAINT check_noinherit CHECK (sensor_1 > 0) NO INHERIT;
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\set ON_ERROR_STOP 1
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