mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-22 13:40:56 +08:00
406 lines
24 KiB
Plaintext
406 lines
24 KiB
Plaintext
-- 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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NOTICE: adding not-null constraint to column "a"
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DETAIL: Time dimensions cannot have NULL values.
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table_name
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------------
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foo2
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(1 row)
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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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NOTICE: adding not-null constraint to column "a"
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DETAIL: Time dimensions cannot have NULL values.
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table_name
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------------
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foo3
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(1 row)
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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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NOTICE: adding not-null constraint to column "a"
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DETAIL: Time dimensions cannot have NULL values.
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table_name
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----------------
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non_compressed
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(1 row)
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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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ERROR: the option timescaledb.compress must be set to true to enable compression
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ALTER TABLE foo2 set (timescaledb.compress, timescaledb.compress_segmentby = '"bacB toD",c' , timescaledb.compress_orderby = 'c');
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ERROR: cannot use column "c" for both ordering and segmenting
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HINT: Use separate columns for the timescaledb.compress_orderby and timescaledb.compress_segmentby options.
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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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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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NOTICE: adding not-null constraint to column "a"
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DETAIL: Time dimensions cannot have NULL values.
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table_name
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------------
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with_rls
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(1 row)
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ALTER TABLE with_rls set (timescaledb.compress, timescaledb.compress_orderby='a');
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ERROR: compression cannot be used on table with row security
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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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hypertable_id | attname | compression_algorithm_id | segmentby_column_index | orderby_column_index | orderby_asc | orderby_nullsfirst
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---------------+----------+--------------------------+------------------------+----------------------+-------------+--------------------
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1 | a | 4 | | 2 | f | t
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1 | bacB toD | 0 | 1 | | |
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1 | c | 0 | 2 | | |
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1 | d | 4 | | 1 | t | f
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(4 rows)
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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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ERROR: must specify a column to order by
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DETAIL: The timescaledb.compress_orderby option was previously set and must also be specified in the updated configuration.
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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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NOTICE: adding not-null constraint to column "a"
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DETAIL: Time dimensions cannot have NULL values.
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table_name
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------------------------
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reserved_column_prefix
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(1 row)
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ALTER TABLE reserved_column_prefix set (timescaledb.compress);
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ERROR: cannot compress tables with reserved column prefix '_ts_meta_'
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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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NOTICE: adding not-null constraint to column "a"
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DETAIL: Time dimensions cannot have NULL values.
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table_name
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------------
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foo
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(1 row)
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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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ERROR: ALTER TABLE <hypertable> SET does not support multiple clauses
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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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attname | attnotnull
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---------+------------
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b | t
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(1 row)
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'd');
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ERROR: column "d" does not exist
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HINT: The timescaledb.compress_segmentby option must reference a valid column.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'd');
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ERROR: column "d" does not exist
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HINT: The timescaledb.compress_orderby option must reference a valid column.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc nulls');
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ERROR: unable to parse ordering option "c desc nulls"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc nulls thirsty');
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ERROR: unable to parse ordering option "c desc nulls thirsty"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c climb nulls first');
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ERROR: unable to parse ordering option "c climb nulls first"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c nulls first asC');
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ERROR: unable to parse ordering option "c nulls first asC"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc nulls first asc');
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ERROR: unable to parse ordering option "c desc nulls first asc"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c desc hurry');
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ERROR: unable to parse ordering option "c desc hurry"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c descend');
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ERROR: unable to parse ordering option "c descend"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c; SELECT 1');
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ERROR: unable to parse ordering option "c; SELECT 1"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = '1,2');
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ERROR: unable to parse ordering option "1,2"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c + 1');
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ERROR: unable to parse ordering option "c + 1"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'random()');
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ERROR: unable to parse ordering option "random()"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c LIMIT 1');
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ERROR: unable to parse ordering option "c LIMIT 1"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'c USING <');
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ERROR: unable to parse ordering option "c USING <"
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 't COLLATE "en_US"');
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ERROR: unable to parse ordering option "t COLLATE "en_US""
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HINT: The timescaledb.compress_orderby option must be a set of column names with sort options, separated by commas. It is the same format as an ORDER BY clause.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c asc' , timescaledb.compress_orderby = 'c');
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ERROR: unable to parse segmenting option "c asc"
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HINT: The option timescaledb.compress_segmentby must be a set of columns separated by commas.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c nulls last');
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ERROR: unable to parse segmenting option "c nulls last"
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HINT: The option timescaledb.compress_segmentby must be a set of columns separated by commas.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c + 1');
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ERROR: unable to parse segmenting option "c + 1"
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HINT: The option timescaledb.compress_segmentby must be a set of columns separated by commas.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'random()');
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ERROR: unable to parse segmenting option "random()"
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HINT: The option timescaledb.compress_segmentby must be a set of columns separated by commas.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c LIMIT 1');
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ERROR: unable to parse segmenting option "c LIMIT 1"
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HINT: The option timescaledb.compress_segmentby must be a set of columns separated by commas.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_segmentby = 'c + b');
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ERROR: unable to parse segmenting option "c + b"
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HINT: The option timescaledb.compress_segmentby must be a set of columns separated by commas.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a, p');
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ERROR: invalid ordering column type point
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DETAIL: Could not identify a less-than operator for the type.
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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 ADD COLUMN new_column INT;
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ERROR: operation not supported on hypertables that have compression enabled
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ALTER TABLE foo DROP COLUMN a;
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ERROR: operation not supported on hypertables that have compression enabled
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ALTER TABLE foo DROP COLUMN t;
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ERROR: operation not supported on hypertables that have compression enabled
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ALTER TABLE foo ALTER COLUMN t SET NOT NULL;
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ERROR: operation not supported on hypertables that have compression enabled
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ALTER TABLE foo RESET (timescaledb.compress);
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ERROR: compression options cannot be reset
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ALTER TABLE foo ADD CONSTRAINT chk CHECK(b > 0);
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ERROR: operation not supported on hypertables that have compression enabled
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ALTER TABLE foo ADD CONSTRAINT chk UNIQUE(b);
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ERROR: operation not supported on hypertables that have compression enabled
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ALTER TABLE foo DROP CONSTRAINT chk_existing;
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ERROR: operation not supported on hypertables that have compression enabled
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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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ERROR: operation not supported on hypertables that have compression enabled
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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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hypertable_id | attname | compression_algorithm_id | segmentby_column_index | orderby_column_index | orderby_asc | orderby_nullsfirst
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---------------+---------+--------------------------+------------------------+----------------------+-------------+--------------------
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11 | a | 4 | | 1 | t | f
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11 | b | 4 | | 2 | t | f
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11 | c | 4 | | | |
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11 | p | 1 | | | |
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11 | t | 2 | | | |
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(5 rows)
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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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ERROR: chunk "_hyper_11_2_chunk" is not compressed
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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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ERROR: chunk "_hyper_11_2_chunk" is not compressed
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select decompress_chunk(:'CHUNK_NAME', if_compressed=>true);
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NOTICE: chunk "_hyper_11_2_chunk" is not compressed
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decompress_chunk
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------------------
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(1 row)
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--should succeed
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select compress_chunk(:'CHUNK_NAME');
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compress_chunk
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-----------------------------------------
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_timescaledb_internal._hyper_11_2_chunk
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(1 row)
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select compress_chunk(:'CHUNK_NAME');
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ERROR: chunk "_hyper_11_2_chunk" is already compressed
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select compress_chunk(:'CHUNK_NAME', if_not_compressed=>true);
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NOTICE: chunk "_hyper_11_2_chunk" is already compressed
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compress_chunk
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----------------
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(1 row)
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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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ERROR: compression not enabled on "non_compressed"
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DETAIL: It is not possible to compress chunks on a hypertable that does not have compression enabled.
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HINT: Enable compression using ALTER TABLE with the timescaledb.compress option.
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ALTER TABLE foo set (timescaledb.compress, timescaledb.compress_orderby = 'a', timescaledb.compress_segmentby = 'c');
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ERROR: cannot change configuration on already compressed chunks
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DETAIL: There are compressed chunks that prevent changing the existing compression configuration.
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ALTER TABLE foo set (timescaledb.compress='f');
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ERROR: cannot change configuration on already compressed chunks
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DETAIL: There are compressed chunks that prevent changing the existing compression configuration.
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ALTER TABLE foo reset (timescaledb.compress);
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ERROR: compression options cannot be reset
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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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ERROR: missing compressed hypertable
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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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decompress_chunk
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-----------------------------------------
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_timescaledb_internal._hyper_11_2_chunk
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(1 row)
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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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hypertable_id | attname | compression_algorithm_id | segmentby_column_index | orderby_column_index | orderby_asc | orderby_nullsfirst
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---------------+---------+--------------------------+------------------------+----------------------+-------------+--------------------
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11 | a | 4 | | 1 | t | f
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11 | b | 0 | 1 | | |
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11 | c | 4 | | | |
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11 | p | 1 | | | |
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11 | t | 2 | | | |
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(5 rows)
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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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ERROR: cannot add retention policy to compressed hypertable "_compressed_hypertable_14"
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HINT: Please add the policy to the corresponding uncompressed hypertable instead.
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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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table_name
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--------------
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table_constr
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(1 row)
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ALTER TABLE table_constr set (timescaledb.compress, timescaledb.compress_segmentby = 'd');
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ERROR: column "device_id" must be used for segmenting or ordering
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DETAIL: The constraint "table_constr_pkey" cannot be enforced with the given compression configuration.
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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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ERROR: column "location" must be used for segmenting or ordering
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DETAIL: The constraint "table_constr_uk" cannot be enforced with the given compression configuration.
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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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ERROR: column "d" must be used for segmenting
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DETAIL: The foreign key constraint "table_constr_fk" cannot be enforced with the given compression configuration.
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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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ERROR: constraint table_constr_exclu is not supported for compression
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HINT: Exclusion constraints are not supported on hypertables that are compressed.
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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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ERROR: operation not supported on hypertables that have compression enabled
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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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create_hypertable
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------------------------
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(17,public,table_fk,t)
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(1 row)
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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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compress_chunk
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-----------------------------------------
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_timescaledb_internal._hyper_15_7_chunk
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(1 row)
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SELECT total_chunks , number_compressed_chunks
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FROM hypertable_compression_stats('table_constr');
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total_chunks | number_compressed_chunks
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--------------+--------------------------
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2 | 1
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(1 row)
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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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table_name
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---------------
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table_constr2
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(1 row)
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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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ERROR: column "d" must be used for segmenting
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DETAIL: The foreign key constraint "table_constr2_d_fkey" cannot be enforced with the given compression configuration.
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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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compress_chunk
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------------------------------------------
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_timescaledb_internal._hyper_19_10_chunk
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(1 row)
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ALTER TABLE table_constr2 set (timescaledb.compress=false);
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ERROR: cannot change configuration on already compressed chunks
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DETAIL: There are compressed chunks that prevent changing the existing compression configuration.
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--decompress all chunks and disable compression.
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SELECT decompress_chunk(:'CHUNK_NAME');
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decompress_chunk
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------------------------------------------
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_timescaledb_internal._hyper_19_10_chunk
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(1 row)
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ALTER TABLE table_constr2 SET (timescaledb.compress=false);
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