mirror of
https://github.com/timescale/timescaledb.git
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02ad8b4e7e
We have some debug messages that are printed as notices, but are more suitable to have at `DEBUG1` level. This commit removes a notice about indexes being added and turns it into a `DEBUG1` notice.
183 lines
8.4 KiB
Plaintext
183 lines
8.4 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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-- qual pushdown tests for decompresschunk ---
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-- Test qual pushdown with ints
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CREATE TABLE meta (device_id INT PRIMARY KEY);
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CREATE TABLE hyper(
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time INT NOT NULL,
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device_id INT REFERENCES meta(device_id) ON DELETE CASCADE ON UPDATE CASCADE,
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val INT);
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SELECT * FROM create_hypertable('hyper', 'time', chunk_time_interval => 10);
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hypertable_id | schema_name | table_name | created
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---------------+-------------+------------+---------
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1 | public | hyper | t
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(1 row)
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ALTER TABLE hyper SET (
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timescaledb.compress,
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timescaledb.compress_orderby = 'time',
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timescaledb.compress_segmentby = 'device_id');
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INSERT INTO meta VALUES (1), (2), (3), (4), (5);
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INSERT INTO hyper VALUES (1, 1, 1), (2, 2, 1), (3, 3, 1), (10, 3, 2), (11, 4, 2), (11, 5, 2);
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SELECT ch1.table_name AS "CHUNK_NAME", ch1.schema_name|| '.' || ch1.table_name AS "CHUNK_FULL_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 'hyper'
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ORDER BY ch1.id LIMIT 1 \gset
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SELECT compress_chunk(:'CHUNK_FULL_NAME');
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compress_chunk
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----------------------------------------
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_timescaledb_internal._hyper_1_1_chunk
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(1 row)
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-- test for qual pushdown
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explain (costs off, verbose)
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SELECT
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FROM hyper
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WHERE time > 2::bigint and time < 4;
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QUERY PLAN
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-----------------------------------------------------------------------------------------------------------------------------------
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Append
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-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk
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Filter: ((_hyper_1_1_chunk."time" > '2'::bigint) AND (_hyper_1_1_chunk."time" < 4))
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-> Seq Scan on _timescaledb_internal.compress_hyper_2_3_chunk
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Output: compress_hyper_2_3_chunk._ts_meta_count, compress_hyper_2_3_chunk."time"
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Filter: ((compress_hyper_2_3_chunk._ts_meta_max_1 > '2'::bigint) AND (compress_hyper_2_3_chunk._ts_meta_min_1 < 4))
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(6 rows)
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explain (costs off, verbose)
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SELECT
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FROM hyper
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WHERE time = 3::bigint;
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QUERY PLAN
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-----------------------------------------------------------------------------------------------------------------------------------------------
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Append
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-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_1_1_chunk
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Filter: (_hyper_1_1_chunk."time" = '3'::bigint)
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-> Seq Scan on _timescaledb_internal.compress_hyper_2_3_chunk
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Output: compress_hyper_2_3_chunk._ts_meta_count, compress_hyper_2_3_chunk."time"
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Filter: ((compress_hyper_2_3_chunk._ts_meta_min_1 <= '3'::bigint) AND (compress_hyper_2_3_chunk._ts_meta_max_1 >= '3'::bigint))
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(6 rows)
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SELECT *
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FROM hyper
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WHERE time > 2::bigint and time < 4;
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time | device_id | val
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------+-----------+-----
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3 | 3 | 1
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(1 row)
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SELECT *
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FROM hyper
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WHERE time = 3::bigint;
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time | device_id | val
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------+-----------+-----
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3 | 3 | 1
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(1 row)
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--- github issue 1855
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--- TESTs for meta column pushdown filters on exprs with casts.
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CREATE TABLE metaseg_tab (
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fmid smallint,
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factorid smallint,
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start_dt timestamp without time zone,
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end_dt timestamp without time zone,
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interval_number smallint,
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logret double precision,
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knowledge_date date NOT NULL
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);
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SELECT create_hypertable('metaseg_tab', 'end_dt', chunk_time_interval=>interval '1 month', create_default_indexes=>false);
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NOTICE: adding not-null constraint to column "end_dt"
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create_hypertable
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--------------------------
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(3,public,metaseg_tab,t)
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(1 row)
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SELECT add_dimension('metaseg_tab', 'fmid', chunk_time_interval => 1);
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NOTICE: adding not-null constraint to column "fmid"
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add_dimension
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-------------------------------
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(3,public,metaseg_tab,fmid,t)
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(1 row)
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ALTER TABLE metaseg_tab SET (timescaledb.compress, timescaledb.compress_orderby= 'end_dt');
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INSERT INTO metaseg_tab values (56,0,'2012-12-10 09:45:00','2012-12-10 09:50:00',1,0.1,'2012-12-10');
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SELECT compress_chunk(i) from show_chunks('metaseg_tab') i;
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compress_chunk
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----------------------------------------
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_timescaledb_internal._hyper_3_4_chunk
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(1 row)
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select factorid, end_dt, logret
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from metaseg_tab
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where fmid = 56
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and end_dt between '2012-12-10'::date and '2012-12-11'::date
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order by factorid, end_dt;
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factorid | end_dt | logret
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----------+--------------------------+--------
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0 | Mon Dec 10 09:50:00 2012 | 0.1
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(1 row)
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explain (costs off, verbose)
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select factorid, end_dt, logret
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from metaseg_tab
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where fmid = 56
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and end_dt between '2012-12-10'::date and '2012-12-11'::date
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order by factorid, end_dt;
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QUERY PLAN
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---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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Sort
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Output: _hyper_3_4_chunk.factorid, _hyper_3_4_chunk.end_dt, _hyper_3_4_chunk.logret
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Sort Key: _hyper_3_4_chunk.factorid, _hyper_3_4_chunk.end_dt
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-> Append
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-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_3_4_chunk
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Output: _hyper_3_4_chunk.factorid, _hyper_3_4_chunk.end_dt, _hyper_3_4_chunk.logret
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Filter: ((_hyper_3_4_chunk.end_dt >= '12-10-2012'::date) AND (_hyper_3_4_chunk.end_dt <= '12-11-2012'::date) AND (_hyper_3_4_chunk.fmid = 56))
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-> Seq Scan on _timescaledb_internal.compress_hyper_4_5_chunk
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Output: compress_hyper_4_5_chunk._ts_meta_count, compress_hyper_4_5_chunk.fmid, compress_hyper_4_5_chunk.factorid, compress_hyper_4_5_chunk.end_dt, compress_hyper_4_5_chunk.logret
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Filter: ((compress_hyper_4_5_chunk._ts_meta_max_1 >= '12-10-2012'::date) AND (compress_hyper_4_5_chunk._ts_meta_min_1 <= '12-11-2012'::date))
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(10 rows)
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--no pushdown here
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select factorid, end_dt, logret
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from metaseg_tab
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where fmid = 56
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and end_dt::date between '2012-12-10'::timestamp and '2012-12-11'::date
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order by factorid, end_dt;
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factorid | end_dt | logret
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----------+--------------------------+--------
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0 | Mon Dec 10 09:50:00 2012 | 0.1
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(1 row)
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explain (costs off, verbose)
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select factorid, end_dt, logret
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from metaseg_tab
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where fmid = 56
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and end_dt::date between '2012-12-10'::timestamp and '2012-12-11'::date
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order by factorid, end_dt;
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QUERY PLAN
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-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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Sort
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Output: _hyper_3_4_chunk.factorid, _hyper_3_4_chunk.end_dt, _hyper_3_4_chunk.logret
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Sort Key: _hyper_3_4_chunk.factorid, _hyper_3_4_chunk.end_dt
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-> Append
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-> Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_3_4_chunk
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Output: _hyper_3_4_chunk.factorid, _hyper_3_4_chunk.end_dt, _hyper_3_4_chunk.logret
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Filter: ((_hyper_3_4_chunk.fmid = 56) AND ((_hyper_3_4_chunk.end_dt)::date >= 'Mon Dec 10 00:00:00 2012'::timestamp without time zone) AND ((_hyper_3_4_chunk.end_dt)::date <= '12-11-2012'::date))
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-> Seq Scan on _timescaledb_internal.compress_hyper_4_5_chunk
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Output: compress_hyper_4_5_chunk._ts_meta_count, compress_hyper_4_5_chunk.fmid, compress_hyper_4_5_chunk.factorid, compress_hyper_4_5_chunk.end_dt, compress_hyper_4_5_chunk.logret
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(9 rows)
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--should fail
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\set ON_ERROR_STOP 0
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select factorid, end_dt, logret
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from metaseg_tab
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where fmid = 56
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and end_dt::date = 10;
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ERROR: operator does not exist: date = integer at character 84
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select factorid, end_dt, logret
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from metaseg_tab
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where fmid = 56
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and end_dt::date = 'dec 2010'::date;
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ERROR: invalid input syntax for type date: "dec 2010" at character 86
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