mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-15 01:53:41 +08:00
364 lines
18 KiB
SQL
364 lines
18 KiB
SQL
-- 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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\set ON_ERROR_STOP 0
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\set VERBOSITY default
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--table with special column names --
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create table foo2 (a integer, "bacB toD" integer, c integer, d integer);
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select table_name from create_hypertable('foo2', 'a', chunk_time_interval=> 10);
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create table foo3 (a integer, "bacB toD" integer, c integer, d integer);
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select table_name from create_hypertable('foo3', 'a', chunk_time_interval=> 10);
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create table non_compressed (a integer, "bacB toD" integer, c integer, d integer);
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select table_name from create_hypertable('non_compressed', 'a', chunk_time_interval=> 10);
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insert into non_compressed values( 3 , 16 , 20, 4);
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ALTER TABLE foo2 set (timescaledb.compress_segmentby = '"bacB toD",c' , timescaledb.compress_orderby = 'c');
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ALTER TABLE foo2 set (timescaledb.compress, timescaledb.compress_segmentby = '"bacB toD",c' , timescaledb.compress_orderby = 'c');
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ALTER TABLE foo2 set (timescaledb.compress, timescaledb.compress_segmentby = '"bacB toD",c' , timescaledb.compress_orderby = 'd DESC');
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ALTER TABLE foo2 set (timescaledb.compress, timescaledb.compress_segmentby = '"bacB toD",c' , timescaledb.compress_orderby = 'd');
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-- this is acceptable: having previously set the default value for orderby
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-- and skipping orderby on a subsequent alter command
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create table default_skipped (a integer not null, b integer, c integer, d integer);
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select create_hypertable('default_skipped', 'a', chunk_time_interval=> 10);
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alter table default_skipped set (timescaledb.compress, timescaledb.compress_segmentby = 'c');
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alter table default_skipped set (timescaledb.compress, timescaledb.compress_segmentby = 'c');
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create table with_rls (a integer, b integer);
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ALTER TABLE with_rls ENABLE ROW LEVEL SECURITY;
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select table_name from create_hypertable('with_rls', 'a', chunk_time_interval=> 10);
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ALTER TABLE with_rls set (timescaledb.compress, timescaledb.compress_orderby='a');
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--note that the time column "a" should be added to the end of the orderby list
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select * from _timescaledb_catalog.hypertable_compression order by attname;
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ALTER TABLE foo3 set (timescaledb.compress, timescaledb.compress_orderby='d DeSc NullS lAsT');
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--shold allow alter since segment by was empty
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ALTER TABLE foo3 set (timescaledb.compress, timescaledb.compress_orderby='d Asc NullS lAsT');
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--this is ok too
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ALTER TABLE foo3 set (timescaledb.compress, timescaledb.compress_segmentby = '"bacB toD",c', timescaledb.compress_orderby = 'd DeSc NullS lAsT');
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-- Negative test cases ---
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ALTER TABLE foo2 set (timescaledb.compress, timescaledb.compress_segmentby = '"bacB toD",c');
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alter table default_skipped set (timescaledb.compress, timescaledb.compress_orderby = 'a asc', timescaledb.compress_segmentby = 'c');
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alter table default_skipped set (timescaledb.compress, timescaledb.compress_segmentby = 'c');
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create table reserved_column_prefix (a integer, _ts_meta_foo integer, "bacB toD" integer, c integer, d integer);
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select table_name from create_hypertable('reserved_column_prefix', 'a', chunk_time_interval=> 10);
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ALTER TABLE reserved_column_prefix set (timescaledb.compress);
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--basic test with count
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create table foo (a integer, b integer, c integer, t text, p point);
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ALTER TABLE foo ADD CONSTRAINT chk_existing CHECK(b > 0);
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select table_name from create_hypertable('foo', 'a', chunk_time_interval=> 10);
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insert into foo values( 3 , 16 , 20);
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insert into foo values( 10 , 10 , 20);
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insert into foo values( 20 , 11 , 20);
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insert into foo values( 30 , 12 , 20);
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-- should error out --
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ALTER TABLE foo ALTER b SET NOT NULL, set (timescaledb.compress);
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ALTER TABLE foo ALTER b SET NOT NULL;
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select attname, attnotnull from pg_attribute where attrelid = (select oid from pg_class where relname like 'foo') and attname like 'b';
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'd');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'd');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc nulls');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc nulls thirsty');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c climb nulls first');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c nulls first asC');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc nulls first asc');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc hurry');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c descend');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c; SELECT 1');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = '1,2');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c + 1');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'random()');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c LIMIT 1');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c USING <');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 't COLLATE "en_US"');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c asc' , timescaledb.compress_orderby = 'c');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c nulls last');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c + 1');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'random()');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c LIMIT 1');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c + b');
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a, p');
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--should succeed
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a, b');
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--ddl on ht with compression
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ALTER TABLE foo DROP COLUMN a;
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ALTER TABLE foo DROP COLUMN b;
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ALTER TABLE foo ALTER COLUMN t SET NOT NULL;
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ALTER TABLE foo RESET (timescaledb.compress);
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ALTER TABLE foo ADD CONSTRAINT chk CHECK(b > 0);
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ALTER TABLE foo ADD CONSTRAINT chk UNIQUE(b);
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ALTER TABLE foo DROP CONSTRAINT chk_existing;
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--can add index , but not unique index
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CREATE UNIQUE INDEX foo_idx ON foo ( a, c );
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CREATE INDEX foo_idx ON foo ( a, c );
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--note that the time column "a" should not be added to the end of the order by list again (should appear first)
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select hc.* from _timescaledb_catalog.hypertable_compression hc inner join _timescaledb_catalog.hypertable h on (h.id = hc.hypertable_id) where h.table_name = 'foo' order by attname;
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select decompress_chunk(ch1.schema_name|| '.' || ch1.table_name)
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FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht where ch1.hypertable_id = ht.id and ht.table_name like 'foo' ORDER BY ch1.id limit 1;
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--test changing the segment by columns
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a', timescaledb.compress_segmentby = 'b');
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select ch1.schema_name|| '.' || ch1.table_name AS "CHUNK_NAME"
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FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht where ch1.hypertable_id = ht.id and ht.table_name like 'foo' ORDER BY ch1.id limit 1 \gset
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select decompress_chunk(:'CHUNK_NAME');
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select decompress_chunk(:'CHUNK_NAME', if_compressed=>true);
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--should succeed
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select compress_chunk(:'CHUNK_NAME');
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select compress_chunk(:'CHUNK_NAME');
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select compress_chunk(:'CHUNK_NAME', if_not_compressed=>true);
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select compress_chunk(ch1.schema_name|| '.' || ch1.table_name)
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FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht where ch1.hypertable_id = ht.id and ht.table_name like 'non_compressed' ORDER BY ch1.id limit 1;
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a', timescaledb.compress_segmentby = 'c');
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ALTER TABLE foo set (timescaledb.compress='f');
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ALTER TABLE foo reset (timescaledb.compress);
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select decompress_chunk(ch1.schema_name|| '.' || ch1.table_name)
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FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht where ch1.hypertable_id = ht.id and ht.table_name like 'non_compressed' ORDER BY ch1.id limit 1;
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--should succeed
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select decompress_chunk(ch1.schema_name|| '.' || ch1.table_name)
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FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht where ch1.hypertable_id = ht.id and ht.table_name like 'foo' and ch1.compressed_chunk_id IS NOT NULL;
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--should succeed
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a', timescaledb.compress_segmentby = 'b');
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select hc.* from _timescaledb_catalog.hypertable_compression hc inner join _timescaledb_catalog.hypertable h on (h.id = hc.hypertable_id) where h.table_name = 'foo' order by attname;
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SELECT comp_hyper.schema_name|| '.' || comp_hyper.table_name as "COMPRESSED_HYPER_NAME"
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FROM _timescaledb_catalog.hypertable comp_hyper
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INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
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WHERE uncomp_hyper.table_name like 'foo' ORDER BY comp_hyper.id LIMIT 1 \gset
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select add_retention_policy(:'COMPRESSED_HYPER_NAME', INTERVAL '4 months', true);
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--Constraint checking for compression
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create table fortable(col integer primary key);
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create table table_constr( device_id integer,
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timec integer ,
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location integer ,
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c integer constraint valid_cval check (c > 20) ,
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d integer,
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primary key ( device_id, timec)
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);
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select table_name from create_hypertable('table_constr', 'timec', chunk_time_interval=> 10);
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ALTER TABLE table_constr set (timescaledb.compress, timescaledb.compress_segmentby = 'd');
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alter table table_constr add constraint table_constr_uk unique (location, timec, device_id);
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ALTER TABLE table_constr set (timescaledb.compress, timescaledb.compress_orderby = 'timec', timescaledb.compress_segmentby = 'device_id');
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alter table table_constr add constraint table_constr_fk FOREIGN KEY(d) REFERENCES fortable(col) on delete cascade;
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ALTER TABLE table_constr set (timescaledb.compress, timescaledb.compress_orderby = 'timec', timescaledb.compress_segmentby = 'device_id, location');
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--exclusion constraints not allowed
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alter table table_constr add constraint table_constr_exclu exclude using btree (timec with = );
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ALTER TABLE table_constr set (timescaledb.compress, timescaledb.compress_orderby = 'timec', timescaledb.compress_segmentby = 'device_id, location, d');
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alter table table_constr drop constraint table_constr_exclu ;
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--now it works
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ALTER TABLE table_constr set (timescaledb.compress, timescaledb.compress_orderby = 'timec', timescaledb.compress_segmentby = 'device_id, location, d');
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--can't add fks after compression enabled
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alter table table_constr add constraint table_constr_fk_add_after FOREIGN KEY(d) REFERENCES fortable(col) on delete cascade;
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-- ddl ADD column variants that are not supported
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ALTER TABLE table_constr ADD COLUMN newcol integer CHECK ( newcol < 10 );
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ALTER TABLE table_constr ADD COLUMN newcol integer UNIQUE;
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ALTER TABLE table_constr ADD COLUMN newcol integer PRIMARY KEY;
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ALTER TABLE table_constr ADD COLUMN newcol integer NOT NULL;
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ALTER TABLE table_constr ADD COLUMN newcol integer DEFAULT random() + random();
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ALTER TABLE table_constr ADD COLUMN IF NOT EXISTS newcol integer REFERENCES fortable(col);
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ALTER TABLE table_constr ADD COLUMN IF NOT EXISTS newcol integer GENERATED ALWAYS AS IDENTITY;
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ALTER TABLE table_constr ADD COLUMN IF NOT EXISTS newcol integer GENERATED BY DEFAULT AS IDENTITY;
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ALTER TABLE table_constr ADD COLUMN newcol nonexistent_type;
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--FK check should not error even with dropped columns (previously had a bug related to this)
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CREATE TABLE table_fk (
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time timestamptz NOT NULL,
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id1 int8 NOT NULL,
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id2 int8 NOT NULL,
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value float8 NULL,
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CONSTRAINT fk1 FOREIGN KEY (id1) REFERENCES fortable(col),
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CONSTRAINT fk2 FOREIGN KEY (id2) REFERENCES fortable(col)
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);
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SELECT create_hypertable('table_fk', 'time');
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ALTER TABLE table_fk DROP COLUMN id1;
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ALTER TABLE table_fk SET (timescaledb.compress,timescaledb.compress_segmentby = 'id2');
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-- TEST fk cascade delete behavior on compressed chunk --
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insert into fortable values(1);
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insert into fortable values(10);
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--we want 2 chunks here --
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insert into table_constr values(1000, 1, 44, 44, 1);
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insert into table_constr values(1000, 10, 44, 44, 10);
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select ch1.schema_name|| '.' || ch1.table_name AS "CHUNK_NAME"
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FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht
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where ch1.hypertable_id = ht.id and ht.table_name like 'table_constr'
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ORDER BY ch1.id limit 1 \gset
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-- we have 1 compressed and 1 uncompressed chunk after this.
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select compress_chunk(:'CHUNK_NAME');
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SELECT total_chunks , number_compressed_chunks
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FROM hypertable_compression_stats('table_constr');
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--github issue 1661
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--disable compression after enabling it on a table that has fk constraints
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CREATE TABLE table_constr2( device_id integer,
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timec integer ,
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location integer ,
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d integer references fortable(col),
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primary key ( device_id, timec)
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);
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SELECT table_name from create_hypertable('table_constr2', 'timec', chunk_time_interval=> 10);
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INSERT INTO fortable VALUES( 99 );
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INSERT INTO table_constr2 VALUES( 1000, 10, 5, 99);
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ALTER TABLE table_constr2 SET (timescaledb.compress, timescaledb.compress_segmentby = 'device_id');
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ALTER TABLE table_constr2 SET (timescaledb.compress, timescaledb.compress_segmentby = 'device_id, d');
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--compress a chunk and try to disable compression, it should fail --
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SELECT ch1.schema_name|| '.' || ch1.table_name AS "CHUNK_NAME"
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FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht
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WHERE ch1.hypertable_id = ht.id and ht.table_name like 'table_constr2' \gset
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SELECT compress_chunk(:'CHUNK_NAME');
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ALTER TABLE table_constr2 set (timescaledb.compress=false);
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--decompress all chunks and disable compression.
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SELECT decompress_chunk(:'CHUNK_NAME');
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ALTER TABLE table_constr2 SET (timescaledb.compress=false);
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-- TEST compression policy
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-- modify the config to trigger errors at runtime
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CREATE TABLE test_table_int(time bigint, val int);
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SELECT create_hypertable('test_table_int', 'time', chunk_time_interval => 1);
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CREATE OR REPLACE function dummy_now() returns BIGINT LANGUAGE SQL IMMUTABLE as 'SELECT 5::BIGINT';
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SELECT set_integer_now_func('test_table_int', 'dummy_now');
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INSERT INTO test_table_int SELECT generate_series(1,5), 10;
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ALTER TABLE test_table_int set (timescaledb.compress);
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SELECT add_compression_policy('test_table_int', 2::int) AS compressjob_id
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\gset
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\c :TEST_DBNAME :ROLE_SUPERUSER
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UPDATE _timescaledb_config.bgw_job
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SET config = config - 'compress_after'
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WHERE id = :compressjob_id;
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SELECT config FROM _timescaledb_config.bgw_job WHERE id = :compressjob_id;
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--should fail
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CALL run_job(:compressjob_id);
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SELECT remove_compression_policy('test_table_int');
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--again add a new policy that we'll tamper with
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SELECT add_compression_policy('test_table_int', 2::int) AS compressjob_id
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\gset
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UPDATE _timescaledb_config.bgw_job
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SET config = config - 'hypertable_id'
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WHERE id = :compressjob_id;
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SELECT config FROM _timescaledb_config.bgw_job WHERE id = :compressjob_id;
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--should fail
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CALL run_job(:compressjob_id);
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UPDATE _timescaledb_config.bgw_job
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SET config = NULL
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WHERE id = :compressjob_id;
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SELECT config FROM _timescaledb_config.bgw_job WHERE id = :compressjob_id;
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--should fail
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CALL run_job(:compressjob_id);
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-- test ADD COLUMN IF NOT EXISTS
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CREATE TABLE metric (time TIMESTAMPTZ NOT NULL, val FLOAT8 NOT NULL, dev_id INT4 NOT NULL);
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SELECT create_hypertable('metric', 'time', 'dev_id', 10);
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ALTER TABLE metric SET (
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timescaledb.compress,
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timescaledb.compress_segmentby = 'dev_id',
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timescaledb.compress_orderby = 'time DESC'
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);
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INSERT INTO metric(time, val, dev_id)
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SELECT s.*, 3.14+1, 1
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FROM generate_series('2021-08-17 00:00:00'::timestamp,
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'2021-08-17 00:02:00'::timestamp, '1 s'::interval) s;
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SELECT compress_chunk(show_chunks('metric'));
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-- column does not exist the first time
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ALTER TABLE metric ADD COLUMN IF NOT EXISTS "medium" VARCHAR ;
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-- column already exists the second time
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ALTER TABLE metric ADD COLUMN IF NOT EXISTS "medium" VARCHAR ;
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-- also add one without IF NOT EXISTS
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ALTER TABLE metric ADD COLUMN "medium_1" VARCHAR ;
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ALTER TABLE metric ADD COLUMN "medium_1" VARCHAR ;
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--github issue 3481
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--GROUP BY error when setting compress_segmentby with an enum column
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CREATE TYPE an_enum_type AS ENUM ('home', 'school');
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CREATE TABLE test (
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time timestamp NOT NULL,
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enum_col an_enum_type NOT NULL
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);
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SELECT create_hypertable(
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'test', 'time'
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);
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INSERT INTO test VALUES ('2001-01-01 00:00', 'home'),
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('2001-01-01 01:00', 'school'),
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('2001-01-01 02:00', 'home');
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--enable compression on enum_col
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ALTER TABLE test SET (
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timescaledb.compress,
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timescaledb.compress_segmentby = 'enum_col',
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timescaledb.compress_orderby = 'time'
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);
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--below queries will pass before chunks are compressed
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SELECT 1 FROM test GROUP BY enum_col;
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EXPLAIN SELECT DISTINCT 1 FROM test;
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--compress chunks
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SELECT COMPRESS_CHUNK(X) FROM SHOW_CHUNKS('test') X;
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--below query should pass after chunks are compressed
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SELECT 1 FROM test GROUP BY enum_col;
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EXPLAIN SELECT DISTINCT 1 FROM test;
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--github issue 4398
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SELECT format('CREATE TABLE data_table AS SELECT now() AS tm, %s', array_to_string(array_agg(format('125 AS c%s',a)), ', ')) FROM generate_series(1,550)a \gexec
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CREATE TABLE ts_table (LIKE data_table);
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SELECT * FROM create_hypertable('ts_table', 'tm');
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--should report a warning
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\set VERBOSITY terse
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ALTER TABLE ts_table SET(timescaledb.compress, timescaledb.compress_segmentby = 'c1',
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timescaledb.compress_orderby = 'tm');
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INSERT INTO ts_table SELECT * FROM data_table;
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--cleanup tables
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DROP TABLE data_table cascade;
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DROP TABLE ts_table cascade;
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