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timescaledb/tsl/test/sql/compression_ddl.sql
gayyappan 264540610e Fix tablespace for compressed chunk's index 
When a hypertable uses a non default tablespace, based
on attach_tablespace settings, the compressed chunk's
index is still created in the default tablespace.
This PR fixes this behavior and creates the compressed
chunk and its indexes in the same tablespace.

When move_chunk is executed on a compressed chunk,
move the indexes to the specified destination tablespace.

Fixes #4000
2022-02-14 11:06:10 -05:00

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-- This file and its contents are licensed under the Timescale License.
-- Please see the included NOTICE for copyright information and
-- LICENSE-TIMESCALE for a copy of the license.
\ir include/rand_generator.sql
\c :TEST_DBNAME :ROLE_SUPERUSER
SET client_min_messages = ERROR;
DROP TABLESPACE IF EXISTS tablespace1;
DROP TABLESPACE IF EXISTS tablespace2;
SET client_min_messages = NOTICE;
--test hypertable with tables space
CREATE TABLESPACE tablespace1 OWNER :ROLE_DEFAULT_PERM_USER LOCATION :TEST_TABLESPACE1_PATH;
CREATE TABLESPACE tablespace2 OWNER :ROLE_DEFAULT_PERM_USER LOCATION :TEST_TABLESPACE2_PATH;
\c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
CREATE TABLE test1 ("Time" timestamptz, i integer, b bigint, t text);
SELECT table_name from create_hypertable('test1', 'Time', chunk_time_interval=> INTERVAL '1 day');
INSERT INTO test1 SELECT t, gen_rand_minstd(), gen_rand_minstd(), gen_rand_minstd()::text FROM generate_series('2018-03-02 1:00'::TIMESTAMPTZ, '2018-03-28 1:00', '1 hour') t;
ALTER TABLE test1 set (timescaledb.compress, timescaledb.compress_segmentby = 'b', timescaledb.compress_orderby = '"Time" DESC');
SELECT COUNT(*) AS count_compressed
FROM
(
SELECT compress_chunk(chunk.schema_name|| '.' || chunk.table_name)
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' and chunk.compressed_chunk_id IS NULL ORDER BY chunk.id
)
AS sub;
--make sure allowed ddl still work
ALTER TABLE test1 CLUSTER ON "test1_Time_idx";
ALTER TABLE test1 SET WITHOUT CLUSTER;
CREATE INDEX new_index ON test1(b);
DROP INDEX new_index;
ALTER TABLE test1 SET (fillfactor=100);
ALTER TABLE test1 RESET (fillfactor);
ALTER TABLE test1 ALTER COLUMN b SET STATISTICS 10;
-- TABLESPACES
-- For tablepaces with compressed chunks the semantics are the following:
-- - compressed chunks get put into the same tablespace as the
-- uncompressed chunk on compression.
-- - set tablespace on uncompressed hypertable cascades to compressed hypertable+chunks
-- - set tablespace on all chunks is blocked (same as w/o compression)
-- - move chunks on a uncompressed chunk errors
-- - move chunks on compressed chunk works
--In the future we will:
-- - add tablespace option to compress_chunk function and policy (this will override the setting
-- of the uncompressed chunk). This will allow changing tablespaces upon compression
-- - Note: The current plan is to never listen to the setting on compressed hypertable. In fact,
-- we will block setting tablespace on compressed hypertables
SELECT count(*) as "COUNT_CHUNKS_UNCOMPRESSED"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' \gset
SELECT count(*) as "COUNT_CHUNKS_COMPRESSED"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1' \gset
ALTER TABLE test1 SET TABLESPACE tablespace1;
--all chunks + both the compressed and uncompressed hypertable moved to new tablespace
SELECT count(*) = (:COUNT_CHUNKS_UNCOMPRESSED +:COUNT_CHUNKS_COMPRESSED + 2)
FROM pg_tables WHERE tablespace = 'tablespace1';
ALTER TABLE test1 SET TABLESPACE tablespace2;
SELECT count(*) = (:COUNT_CHUNKS_UNCOMPRESSED +:COUNT_CHUNKS_COMPRESSED + 2)
FROM pg_tables WHERE tablespace = 'tablespace2';
SELECT
comp_chunk.schema_name|| '.' || comp_chunk.table_name as "COMPRESSED_CHUNK_NAME",
uncomp_chunk.schema_name|| '.' || uncomp_chunk.table_name as "UNCOMPRESSED_CHUNK_NAME"
FROM _timescaledb_catalog.chunk comp_chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (comp_chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
INNER JOIN _timescaledb_catalog.chunk uncomp_chunk ON (uncomp_chunk.compressed_chunk_id = comp_chunk.id)
WHERE uncomp_hyper.table_name like 'test1' ORDER BY comp_chunk.id LIMIT 1\gset
-- ensure compression chunk cannot be moved directly
SELECT tablename
FROM pg_tables WHERE tablespace = 'tablespace1';
\set ON_ERROR_STOP 0
ALTER TABLE :COMPRESSED_CHUNK_NAME SET TABLESPACE tablespace1;
\set ON_ERROR_STOP 1
SELECT tablename
FROM pg_tables WHERE tablespace = 'tablespace1';
-- ensure that both compressed and uncompressed chunks moved
ALTER TABLE :UNCOMPRESSED_CHUNK_NAME SET TABLESPACE tablespace1;
SELECT tablename
FROM pg_tables WHERE tablespace = 'tablespace1';
ALTER TABLE test1 SET TABLESPACE tablespace2;
SELECT tablename
FROM pg_tables WHERE tablespace = 'tablespace1';
\set ON_ERROR_STOP 0
SELECT move_chunk(chunk=>:'COMPRESSED_CHUNK_NAME', destination_tablespace=>'tablespace1', index_destination_tablespace=>'tablespace1', reorder_index=>'_timescaledb_internal."compress_hyper_2_28_chunk__compressed_hypertable_2_b__ts_meta_s"');
\set ON_ERROR_STOP 1
-- ensure that both compressed and uncompressed chunks moved
SELECT move_chunk(chunk=>:'UNCOMPRESSED_CHUNK_NAME', destination_tablespace=>'tablespace1', index_destination_tablespace=>'tablespace1', reorder_index=>'_timescaledb_internal."_hyper_1_1_chunk_test1_Time_idx"');
SELECT tablename
FROM pg_tables WHERE tablespace = 'tablespace1';
-- the compressed chunk is in here now
SELECT count(*)
FROM pg_tables WHERE tablespace = 'tablespace1';
SELECT decompress_chunk(:'UNCOMPRESSED_CHUNK_NAME');
--the compresse chunk was dropped by decompression
SELECT count(*)
FROM pg_tables WHERE tablespace = 'tablespace1';
SELECT move_chunk(chunk=>:'UNCOMPRESSED_CHUNK_NAME', destination_tablespace=>'tablespace1', index_destination_tablespace=>'tablespace1', reorder_index=>'_timescaledb_internal."_hyper_1_1_chunk_test1_Time_idx"');
--the uncompressed chunks has now been moved
SELECT count(*)
FROM pg_tables WHERE tablespace = 'tablespace1';
SELECT compress_chunk(:'UNCOMPRESSED_CHUNK_NAME');
--the compressed chunk is now in the same tablespace as the uncompressed one
SELECT count(*)
FROM pg_tables WHERE tablespace = 'tablespace1';
--
-- DROP CHUNKS
--
SELECT count(*) as count_chunks_uncompressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1';
SELECT count(*) as count_chunks_compressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1';
SELECT chunk.schema_name|| '.' || chunk.table_name as "UNCOMPRESSED_CHUNK_NAME"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' ORDER BY chunk.id LIMIT 1 \gset
DROP TABLE :UNCOMPRESSED_CHUNK_NAME;
--should decrease #chunks both compressed and decompressed
SELECT count(*) as count_chunks_uncompressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1';
--make sure there are no orphaned _timescaledb_catalog.compression_chunk_size entries (should be 0)
SELECT count(*) as orphaned_compression_chunk_size
FROM _timescaledb_catalog.compression_chunk_size size
LEFT JOIN _timescaledb_catalog.chunk chunk ON (chunk.id = size.chunk_id)
WHERE chunk.id IS NULL;
SELECT count(*) as count_chunks_compressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1';
SELECT drop_chunks('test1', older_than => '2018-03-10'::TIMESTAMPTZ);
--should decrease #chunks both compressed and decompressed
SELECT count(*) as count_chunks_uncompressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1';
SELECT count(*) as count_chunks_compressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1';
SELECT chunk.schema_name|| '.' || chunk.table_name as "UNCOMPRESSED_CHUNK_NAME"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' ORDER BY chunk.id LIMIT 1 \gset
SELECT chunk.schema_name|| '.' || chunk.table_name as "COMPRESSED_CHUNK_NAME"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1' ORDER BY chunk.id LIMIT 1
\gset
\set ON_ERROR_STOP 0
DROP TABLE :COMPRESSED_CHUNK_NAME;
\set ON_ERROR_STOP 1
SELECT
chunk.schema_name|| '.' || chunk.table_name as "UNCOMPRESSED_CHUNK_NAME",
comp_chunk.schema_name|| '.' || comp_chunk.table_name as "COMPRESSED_CHUNK_NAME"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.chunk comp_chunk ON (chunk.compressed_chunk_id = comp_chunk.id)
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' ORDER BY chunk.id LIMIT 1 \gset
--create a dependent object on the compressed chunk to test cascade behaviour
CREATE VIEW dependent_1 AS SELECT * FROM :COMPRESSED_CHUNK_NAME;
\set ON_ERROR_STOP 0
--errors due to dependent objects
DROP TABLE :UNCOMPRESSED_CHUNK_NAME;
\set ON_ERROR_STOP 1
DROP TABLE :UNCOMPRESSED_CHUNK_NAME CASCADE;
--should decrease #chunks both compressed and decompressed
SELECT count(*) as count_chunks_uncompressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1';
SELECT count(*) as count_chunks_compressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1';
SELECT
chunk.schema_name|| '.' || chunk.table_name as "UNCOMPRESSED_CHUNK_NAME",
comp_chunk.schema_name|| '.' || comp_chunk.table_name as "COMPRESSED_CHUNK_NAME"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.chunk comp_chunk ON (chunk.compressed_chunk_id = comp_chunk.id)
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' ORDER BY chunk.id LIMIT 1 \gset
CREATE VIEW dependent_1 AS SELECT * FROM :COMPRESSED_CHUNK_NAME;
\set ON_ERROR_STOP 0
\set VERBOSITY default
--errors due to dependent objects
SELECT drop_chunks('test1', older_than => '2018-03-28'::TIMESTAMPTZ);
\set VERBOSITY terse
\set ON_ERROR_STOP 1
DROP VIEW dependent_1;
SELECT drop_chunks('test1', older_than => '2018-03-28'::TIMESTAMPTZ);
--should decrease #chunks both compressed and decompressed
SELECT count(*) as count_chunks_uncompressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1';
SELECT count(*) as count_chunks_compressed
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1';
--make sure there are no orphaned _timescaledb_catalog.compression_chunk_size entries (should be 0)
SELECT count(*) as orphaned_compression_chunk_size
FROM _timescaledb_catalog.compression_chunk_size size
LEFT JOIN _timescaledb_catalog.chunk chunk ON (chunk.id = size.chunk_id)
WHERE chunk.id IS NULL;
--
-- DROP HYPERTABLE
--
SELECT comp_hyper.schema_name|| '.' || comp_hyper.table_name as "COMPRESSED_HYPER_NAME"
FROM _timescaledb_catalog.hypertable comp_hyper
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1' ORDER BY comp_hyper.id LIMIT 1 \gset
\set ON_ERROR_STOP 0
DROP TABLE :COMPRESSED_HYPER_NAME;
\set ON_ERROR_STOP 1
BEGIN;
SELECT hypertable.schema_name|| '.' || hypertable.table_name as "UNCOMPRESSED_HYPER_NAME"
FROM _timescaledb_catalog.hypertable hypertable
WHERE hypertable.table_name like 'test1' ORDER BY hypertable.id LIMIT 1 \gset
--before the drop there are 2 hypertables: the compressed and uncompressed ones
SELECT count(*) FROM _timescaledb_catalog.hypertable hypertable;
--add policy to make sure it's dropped later
select add_compression_policy(:'UNCOMPRESSED_HYPER_NAME', interval '1 day');
SELECT count(*) FROM _timescaledb_config.bgw_job WHERE id >= 1000;
DROP TABLE :UNCOMPRESSED_HYPER_NAME;
--verify that there are no more hypertable remaining
SELECT count(*) FROM _timescaledb_catalog.hypertable hypertable;
SELECT count(*) FROM _timescaledb_catalog.hypertable_compression;
--verify that the policy is gone
SELECT count(*) FROM _timescaledb_config.bgw_job WHERE id >= 1000;
ROLLBACK;
--create a dependent object on the compressed hypertable to test cascade behaviour
CREATE VIEW dependent_1 AS SELECT * FROM :COMPRESSED_HYPER_NAME;
\set ON_ERROR_STOP 0
DROP TABLE :UNCOMPRESSED_HYPER_NAME;
\set ON_ERROR_STOP 1
BEGIN;
DROP TABLE :UNCOMPRESSED_HYPER_NAME CASCADE;
SELECT count(*) FROM _timescaledb_catalog.hypertable hypertable;
ROLLBACK;
DROP VIEW dependent_1;
--create a cont agg view on the ht as well then the drop should nuke everything
CREATE MATERIALIZED VIEW test1_cont_view
WITH (timescaledb.continuous,
timescaledb.materialized_only=true)
AS SELECT time_bucket('1 hour', "Time"), SUM(i)
FROM test1
GROUP BY 1 WITH NO DATA;
SELECT add_continuous_aggregate_policy('test1_cont_view', NULL, '1 hour'::interval, '1 day'::interval);
CALL refresh_continuous_aggregate('test1_cont_view', NULL, NULL);
SELECT count(*) FROM test1_cont_view;
\c :TEST_DBNAME :ROLE_SUPERUSER
SELECT chunk.schema_name|| '.' || chunk.table_name as "COMPRESSED_CHUNK_NAME"
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)
INNER JOIN _timescaledb_catalog.hypertable uncomp_hyper ON (comp_hyper.id = uncomp_hyper.compressed_hypertable_id)
WHERE uncomp_hyper.table_name like 'test1' ORDER BY chunk.id LIMIT 1
\gset
ALTER TABLE test1 OWNER TO :ROLE_DEFAULT_PERM_USER_2;
--make sure new owner is propagated down
SELECT a.rolname from pg_class c INNER JOIN pg_authid a ON(c.relowner = a.oid) WHERE c.oid = 'test1'::regclass;
SELECT a.rolname from pg_class c INNER JOIN pg_authid a ON(c.relowner = a.oid) WHERE c.oid = :'COMPRESSED_HYPER_NAME'::regclass;
SELECT a.rolname from pg_class c INNER JOIN pg_authid a ON(c.relowner = a.oid) WHERE c.oid = :'COMPRESSED_CHUNK_NAME'::regclass;
--
-- turn off compression
--
SELECT COUNT(*) AS count_compressed
FROM
(
SELECT decompress_chunk(chunk.schema_name|| '.' || chunk.table_name)
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' and chunk.compressed_chunk_id IS NOT NULL ORDER BY chunk.id
)
AS sub;
select add_compression_policy('test1', interval '1 day');
\set ON_ERROR_STOP 0
ALTER table test1 set (timescaledb.compress='f');
\set ON_ERROR_STOP 1
select remove_compression_policy('test1');
ALTER table test1 set (timescaledb.compress='f');
--only one hypertable left
SELECT count(*) = 1 FROM _timescaledb_catalog.hypertable hypertable;
SELECT compressed_hypertable_id IS NULL FROM _timescaledb_catalog.hypertable hypertable WHERE hypertable.table_name like 'test1' ;
--no hypertable compression entries left
SELECT count(*) = 0 FROM _timescaledb_catalog.hypertable_compression;
--make sure there are no orphaned _timescaledb_catalog.compression_chunk_size entries (should be 0)
SELECT count(*) as orphaned_compression_chunk_size
FROM _timescaledb_catalog.compression_chunk_size size
LEFT JOIN _timescaledb_catalog.chunk chunk ON (chunk.id = size.chunk_id)
WHERE chunk.id IS NULL;
--can turn compression back on
ALTER TABLE test1 set (timescaledb.compress, timescaledb.compress_segmentby = 'b', timescaledb.compress_orderby = '"Time" DESC');
SELECT COUNT(*) AS count_compressed
FROM
(
SELECT compress_chunk(chunk.schema_name|| '.' || chunk.table_name)
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' and chunk.compressed_chunk_id IS NULL ORDER BY chunk.id
)
AS sub;
DROP TABLE test1 CASCADE;
DROP TABLESPACE tablespace1;
-- Triggers are NOT fired for compress/decompress
CREATE TABLE test1 ("Time" timestamptz, i integer);
SELECT table_name from create_hypertable('test1', 'Time', chunk_time_interval=> INTERVAL '1 day');
CREATE OR REPLACE FUNCTION test1_print_func()
RETURNS TRIGGER LANGUAGE PLPGSQL AS
$BODY$
BEGIN
RAISE NOTICE ' raise notice test1_print_trigger called ';
RETURN OLD;
END;
$BODY$;
CREATE TRIGGER test1_trigger
BEFORE INSERT OR UPDATE OR DELETE OR TRUNCATE ON test1
FOR EACH STATEMENT EXECUTE FUNCTION test1_print_func();
INSERT INTO test1 SELECT generate_series('2018-03-02 1:00'::TIMESTAMPTZ, '2018-03-03 1:00', '1 hour') , 1 ;
-- add a row trigger too --
CREATE TRIGGER test1_trigger2
BEFORE INSERT OR UPDATE OR DELETE ON test1
FOR EACH ROW EXECUTE FUNCTION test1_print_func();
INSERT INTO test1 SELECT '2018-03-02 1:05'::TIMESTAMPTZ, 2;
ALTER TABLE test1 set (timescaledb.compress, timescaledb.compress_orderby = '"Time" DESC');
SELECT COUNT(*) AS count_compressed FROM
(
SELECT compress_chunk(chunk.schema_name|| '.' || chunk.table_name)
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' and chunk.compressed_chunk_id IS NULL ORDER BY chunk.id) AS subq;
SELECT COUNT(*) AS count_compressed FROM
(
SELECT decompress_chunk(chunk.schema_name|| '.' || chunk.table_name)
FROM _timescaledb_catalog.chunk chunk
INNER JOIN _timescaledb_catalog.hypertable hypertable ON (chunk.hypertable_id = hypertable.id)
WHERE hypertable.table_name like 'test1' ORDER BY chunk.id ) as subq;
DROP TABLE test1;
-- test disabling compression on hypertables with caggs and dropped chunks
-- github issue 2844
CREATE TABLE i2844 (created_at timestamptz NOT NULL,c1 float);
SELECT create_hypertable('i2844', 'created_at', chunk_time_interval => '6 hour'::interval);
INSERT INTO i2844 SELECT generate_series('2000-01-01'::timestamptz, '2000-01-02'::timestamptz,'1h'::interval);
CREATE MATERIALIZED VIEW test_agg WITH (timescaledb.continuous) AS SELECT time_bucket('1 hour', created_at) AS bucket, AVG(c1) AS avg_c1 FROM i2844 GROUP BY bucket;
ALTER TABLE i2844 SET (timescaledb.compress);
SELECT compress_chunk(show_chunks) AS compressed_chunk FROM show_chunks('i2844');
SELECT drop_chunks('i2844', older_than => '2000-01-01 18:00'::timestamptz);
SELECT decompress_chunk(show_chunks, if_compressed => TRUE) AS decompressed_chunks FROM show_chunks('i2844');
ALTER TABLE i2844 SET (timescaledb.compress = FALSE);
-- TEST compression alter schema tests
\ir include/compression_alter.sql
--TEST tablespaces for compressed chunks with attach_tablespace interface --
CREATE TABLE test2 (timec timestamptz, i integer, t integer);
SELECT table_name from create_hypertable('test2', 'timec', chunk_time_interval=> INTERVAL '1 day');
SELECT attach_tablespace('tablespace2', 'test2');
INSERT INTO test2 SELECT t, gen_rand_minstd(), 22
FROM generate_series('2018-03-02 1:00'::TIMESTAMPTZ, '2018-03-02 13:00', '1 hour') t;
ALTER TABLE test2 set (timescaledb.compress, timescaledb.compress_segmentby = 'i', timescaledb.compress_orderby = 'timec');
SELECT relname FROM pg_class
WHERE reltablespace in
( SELECT oid from pg_tablespace WHERE spcname = 'tablespace2') ORDER BY 1;
SELECT compress_chunk(ch) FROM show_chunks('test2') ch;
-- the chunk, compressed chunk + index + toast tables are in tablespace2 now .
-- toast table names differ across runs. So we use count to verify the results
-- instead of printing the table/index names
SELECT count(*) FROM (
SELECT relname FROM pg_class
WHERE reltablespace in
( SELECT oid from pg_tablespace WHERE spcname = 'tablespace2'))q;
DROP TABLE test2 CASCADE;
DROP TABLESPACE tablespace2;
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