mirror of
https://github.com/timescale/timescaledb.git
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aa904fa5d0
The current approach of handling alter table commands does not allow getting the result of the command; for instance, the object address of a created constraint on a hypertable. Thus there is no way to get the auto-generated name of a constraint, which is needed when the corresponding constraints are created on the hypertable's chunks. Therefore, this change blocks the ability to create constraints without an explicit name. When a better approach to handling alter table is deviced, it is possible to remove this restriction.
314 lines
8.8 KiB
SQL
314 lines
8.8 KiB
SQL
\o /dev/null
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\ir include/create_single_db.sql
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\o
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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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\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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----------------------- UNIQUE CONSTRAINTS ------------------
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CREATE TABLE hyper_unique (
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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', 'time', chunk_time_interval => 10);
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INSERT INTO hyper_unique(time, device_id,sensor_1) VALUES
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(1257987700000000000, 'dev2', 11);
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INSERT INTO hyper_unique(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(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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\d+ hyper
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\d+ hyper_unique
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--should have unique constraint not just unique index
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\d+ _timescaledb_internal._hyper_2_4_chunk
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ALTER TABLE hyper_unique DROP CONSTRAINT hyper_unique_time_key;
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\d+ _timescaledb_internal._hyper_2_4_chunk
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--uniqueness not enforced
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INSERT INTO hyper_unique(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 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 WHERE device_id = 'dev3';
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CREATE UNIQUE INDEX ON hyper_unique (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 ADD CONSTRAINT hyper_unique_time_key UNIQUE USING INDEX hyper_unique_time_idx;
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-- Try to add constraint without a name
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ALTER TABLE hyper_unique ADD UNIQUE (time);
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\set ON_ERROR_STOP 1
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DROP INDEX hyper_unique_time_idx;
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--now can create
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ALTER TABLE hyper_unique ADD CONSTRAINT hyper_unique_time_key UNIQUE (time);
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\d+ _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 ADD CONSTRAINT hyper_unique_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(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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--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 ADD CONSTRAINT hyper_unique_invalid UNIQUE (device_id);
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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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\d+ _timescaledb_internal._hyper_3_6_chunk
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ALTER TABLE hyper_pk DROP CONSTRAINT hyper_pk_pkey;
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\d+ _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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\d+ _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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----------------------- 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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