mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-17 02:53:51 +08:00
e5691bee11
Removed the PG12 specific macros and all the now, dead code. Also updated the testcases which had workarounds in place to make them compatible with PG12.
105 lines
2.9 KiB
MySQL
105 lines
2.9 KiB
MySQL
-- This file and its contents are licensed under the Apache License 2.0.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-APACHE for a copy of the license.
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CREATE TABLE cluster_test(time timestamptz, temp float, location int);
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SELECT create_hypertable('cluster_test', 'time', chunk_time_interval => interval '1 day');
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-- Show default indexes
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SELECT * FROM test.show_indexes('cluster_test');
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-- Create two chunks
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INSERT INTO cluster_test VALUES ('2017-01-20T09:00:01', 23.4, 1),
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('2017-01-21T09:00:01', 21.3, 2);
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-- Run cluster
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CLUSTER VERBOSE cluster_test USING cluster_test_time_idx;
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-- Create a third chunk
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INSERT INTO cluster_test VALUES ('2017-01-22T09:00:01', 19.5, 3);
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-- Show clustered indexes
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SELECT indexrelid::regclass, indisclustered
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FROM pg_index
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WHERE indisclustered = true ORDER BY 1;
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-- Reorder just our table
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CLUSTER VERBOSE cluster_test;
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-- Show clustered indexes, including new chunk
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SELECT indexrelid::regclass, indisclustered
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FROM pg_index
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WHERE indisclustered = true ORDER BY 1;
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-- Reorder all tables (although will only be our test table)
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CLUSTER VERBOSE;
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-- Change the clustered index
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CREATE INDEX ON cluster_test (time, location);
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CLUSTER VERBOSE cluster_test using cluster_test_time_location_idx;
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-- Show updated clustered indexes
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SELECT indexrelid::regclass, indisclustered
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FROM pg_index
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WHERE indisclustered = true ORDER BY 1;
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--check the setting of cluster indexes on hypertables and chunks
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ALTER TABLE cluster_test CLUSTER ON cluster_test_time_idx;
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SELECT indexrelid::regclass, indisclustered
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FROM pg_index
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WHERE indisclustered = true
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ORDER BY 1,2;
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CLUSTER VERBOSE cluster_test;
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ALTER TABLE cluster_test SET WITHOUT CLUSTER;
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SELECT indexrelid::regclass, indisclustered
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FROM pg_index
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WHERE indisclustered = true
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ORDER BY 1,2;
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\set ON_ERROR_STOP 0
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CLUSTER VERBOSE cluster_test;
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\set ON_ERROR_STOP 1
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ALTER TABLE _timescaledb_internal._hyper_1_1_chunk CLUSTER ON _hyper_1_1_chunk_cluster_test_time_idx;
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SELECT indexrelid::regclass, indisclustered
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FROM pg_index
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WHERE indisclustered = true
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ORDER BY 1,2;
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CLUSTER VERBOSE _timescaledb_internal._hyper_1_1_chunk;
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ALTER TABLE _timescaledb_internal._hyper_1_1_chunk SET WITHOUT CLUSTER;
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SELECT indexrelid::regclass, indisclustered
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FROM pg_index
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WHERE indisclustered = true
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ORDER BY 1,2;
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\set ON_ERROR_STOP 0
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CLUSTER VERBOSE _timescaledb_internal._hyper_1_1_chunk;
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\set ON_ERROR_STOP 1
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-- test alter column type on hypertable with clustering
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CREATE TABLE cluster_alter(time timestamp, id text, val int);
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CREATE INDEX idstuff ON cluster_alter USING btree (id ASC NULLS LAST, time);
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SELECT table_name FROM create_hypertable('cluster_alter', 'time');
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INSERT INTO cluster_alter VALUES('2020-01-01', '123', 1);
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CLUSTER cluster_alter using idstuff;
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--attempt the alter table
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ALTER TABLE cluster_alter ALTER COLUMN id TYPE int USING id::int;
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CLUSTER cluster_alter;
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CLUSTER cluster_alter using idstuff;
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