mirror of
https://github.com/timescale/timescaledb.git
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0db50e7ffc
This commit add handling for dropping of chunks and hypertables in the presence of associated compressed objects. If the uncompressed chunk/hypertable is dropped than drop the associated compressed object using DROP_RESTRICT unless cascading is explicitly enabled. Also add a compressed_chunk_id index on compressed tables for figuring out whether a chunk is compressed or not. Change a bunch of APIs to use DropBehavior instead of a cascade bool to be more explicit. Also test the drop chunks policy.
111 lines
6.7 KiB
SQL
111 lines
6.7 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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--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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--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_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 foo2 set (timescaledb.compress='f');
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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);
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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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--should succeed
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a, b');
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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' 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' limit 1 \gset
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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(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' limit 1;
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a', timescaledb.compress_segmentby = 'c');
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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' 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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