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timescaledb/test/expected/sql_query.out
Matvey Arye a78f1570ba Remove dblink dependency. 
The dblink extension is blacklisted by some cloud-hosting providers and
is an unnecessary dependency for single-node operation. Since we don't plan
to use dblink to implement clustering this PR removes the dependency.
2017-04-12 11:14:54 -04:00

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\o /dev/null
\ir include/insert_two_partitions.sql
\ir create_single_db.sql
SET client_min_messages = WARNING;
DROP DATABASE IF EXISTS single;
SET client_min_messages = NOTICE;
CREATE DATABASE single;
\c single
CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;
psql:include/create_single_db.sql:7: NOTICE: installing required extension "postgres_fdw"
SELECT setup_timescaledb(hostname => 'fakehost'); -- fakehost makes sure there is no network connection
\c single
CREATE TABLE PUBLIC."two_Partitions" (
"timeCustom" BIGINT NOT NULL,
device_id TEXT NOT NULL,
series_0 DOUBLE PRECISION NULL,
series_1 DOUBLE PRECISION NULL,
series_2 DOUBLE PRECISION NULL,
series_bool BOOLEAN NULL
);
CREATE INDEX ON PUBLIC."two_Partitions" (device_id, "timeCustom" DESC NULLS LAST) WHERE device_id IS NOT NULL;
CREATE INDEX ON PUBLIC."two_Partitions" ("timeCustom" DESC NULLS LAST, series_0) WHERE series_0 IS NOT NULL;
CREATE INDEX ON PUBLIC."two_Partitions" ("timeCustom" DESC NULLS LAST, series_1) WHERE series_1 IS NOT NULL;
CREATE INDEX ON PUBLIC."two_Partitions" ("timeCustom" DESC NULLS LAST, series_2) WHERE series_2 IS NOT NULL;
CREATE INDEX ON PUBLIC."two_Partitions" ("timeCustom" DESC NULLS LAST, series_bool) WHERE series_bool IS NOT NULL;
CREATE INDEX ON PUBLIC."two_Partitions" ("timeCustom" DESC NULLS LAST, device_id);
SELECT * FROM create_hypertable('"public"."two_Partitions"'::regclass, 'timeCustom'::name, 'device_id'::name, associated_schema_name=>'_timescaledb_internal'::text, number_partitions => 2);
BEGIN;
\COPY public."two_Partitions" FROM 'data/ds1_dev1_1.tsv' NULL AS '';
COMMIT;
SELECT _timescaledb_meta_api.close_chunk_end_immediate(c.id)
FROM get_open_partition_for_key((SELECT id FROM _timescaledb_catalog.hypertable WHERE table_name = 'two_Partitions'), 'dev1') part
INNER JOIN _timescaledb_catalog.chunk c ON (c.partition_id = part.id);
INSERT INTO public."two_Partitions"("timeCustom", device_id, series_0, series_1) VALUES
(1257987600000000000, 'dev1', 1.5, 1),
(1257987600000000000, 'dev1', 1.5, 2),
(1257894000000000000, 'dev20', 1.5, 1),
(1257894002000000000, 'dev1', 2.5, 3);
INSERT INTO "two_Partitions"("timeCustom", device_id, series_0, series_1) VALUES
(1257894000000000000, 'dev20', 1.5, 2);
\o
SELECT * FROM PUBLIC."two_Partitions";
timeCustom | device_id | series_0 | series_1 | series_2 | series_bool
---------------------+-----------+----------+----------+----------+-------------
1257894000000000000 | dev1 | 1.5 | 1 | 2 | t
1257894000000000000 | dev1 | 1.5 | 2 | |
1257894000000001000 | dev1 | 2.5 | 3 | |
1257894001000000000 | dev1 | 3.5 | 4 | |
1257897600000000000 | dev1 | 4.5 | 5 | | f
1257894002000000000 | dev1 | 2.5 | 3 | |
1257987600000000000 | dev1 | 1.5 | 1 | |
1257987600000000000 | dev1 | 1.5 | 2 | |
1257894000000000000 | dev20 | 1.5 | 1 | |
1257894000000000000 | dev20 | 1.5 | 2 | |
(10 rows)
EXPLAIN (verbose ON, costs off) SELECT * FROM PUBLIC."two_Partitions";
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Append
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_partition
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.device_id, _hyper_1_1_0_partition.series_0, _hyper_1_1_0_partition.series_1, _hyper_1_1_0_partition.series_2, _hyper_1_1_0_partition.series_bool
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_1_data
Output: _hyper_1_1_0_1_data."timeCustom", _hyper_1_1_0_1_data.device_id, _hyper_1_1_0_1_data.series_0, _hyper_1_1_0_1_data.series_1, _hyper_1_1_0_1_data.series_2, _hyper_1_1_0_1_data.series_bool
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_2_data
Output: _hyper_1_1_0_2_data."timeCustom", _hyper_1_1_0_2_data.device_id, _hyper_1_1_0_2_data.series_0, _hyper_1_1_0_2_data.series_1, _hyper_1_1_0_2_data.series_2, _hyper_1_1_0_2_data.series_bool
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.device_id, _hyper_1_2_0_3_data.series_0, _hyper_1_2_0_3_data.series_1, _hyper_1_2_0_3_data.series_2, _hyper_1_2_0_3_data.series_bool
(13 rows)
\echo "The following queries should NOT scan two_Partitions._hyper_1_1_0_partition"
"The following queries should NOT scan two_Partitions._hyper_1_1_0_partition"
EXPLAIN (verbose ON, costs off) SELECT * FROM PUBLIC."two_Partitions" WHERE device_id = 'dev20';
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Append
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Filter: ((_hyper_1_0_replica.device_id = 'dev20'::text) AND (_timescaledb_catalog.get_partition_for_key(_hyper_1_0_replica.device_id, 32768) = '28646'::smallint))
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Filter: ((_hyper_1_2_0_partition.device_id = 'dev20'::text) AND (_timescaledb_catalog.get_partition_for_key(_hyper_1_2_0_partition.device_id, 32768) = '28646'::smallint))
-> Bitmap Heap Scan on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.device_id, _hyper_1_2_0_3_data.series_0, _hyper_1_2_0_3_data.series_1, _hyper_1_2_0_3_data.series_2, _hyper_1_2_0_3_data.series_bool
Recheck Cond: (_hyper_1_2_0_3_data.device_id = 'dev20'::text)
Filter: (_timescaledb_catalog.get_partition_for_key(_hyper_1_2_0_3_data.device_id, 32768) = '28646'::smallint)
-> Bitmap Index Scan on "13-two_Partitions_device_id_timeCustom_idx"
Index Cond: (_hyper_1_2_0_3_data.device_id = 'dev20'::text)
(13 rows)
EXPLAIN (verbose ON, costs off) SELECT * FROM PUBLIC."two_Partitions" WHERE device_id = 'dev'||'20';
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Append
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Filter: ((_hyper_1_0_replica.device_id = 'dev20'::text) AND (_timescaledb_catalog.get_partition_for_key(_hyper_1_0_replica.device_id, 32768) = '28646'::smallint))
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Filter: ((_hyper_1_2_0_partition.device_id = 'dev20'::text) AND (_timescaledb_catalog.get_partition_for_key(_hyper_1_2_0_partition.device_id, 32768) = '28646'::smallint))
-> Bitmap Heap Scan on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.device_id, _hyper_1_2_0_3_data.series_0, _hyper_1_2_0_3_data.series_1, _hyper_1_2_0_3_data.series_2, _hyper_1_2_0_3_data.series_bool
Recheck Cond: (_hyper_1_2_0_3_data.device_id = 'dev20'::text)
Filter: (_timescaledb_catalog.get_partition_for_key(_hyper_1_2_0_3_data.device_id, 32768) = '28646'::smallint)
-> Bitmap Index Scan on "13-two_Partitions_device_id_timeCustom_idx"
Index Cond: (_hyper_1_2_0_3_data.device_id = 'dev20'::text)
(13 rows)
EXPLAIN (verbose ON, costs off) SELECT * FROM PUBLIC."two_Partitions" WHERE 'dev'||'20' = device_id;
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Append
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Filter: (('dev20'::text = _hyper_1_0_replica.device_id) AND (_timescaledb_catalog.get_partition_for_key(_hyper_1_0_replica.device_id, 32768) = '28646'::smallint))
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Filter: (('dev20'::text = _hyper_1_2_0_partition.device_id) AND (_timescaledb_catalog.get_partition_for_key(_hyper_1_2_0_partition.device_id, 32768) = '28646'::smallint))
-> Bitmap Heap Scan on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.device_id, _hyper_1_2_0_3_data.series_0, _hyper_1_2_0_3_data.series_1, _hyper_1_2_0_3_data.series_2, _hyper_1_2_0_3_data.series_bool
Recheck Cond: ('dev20'::text = _hyper_1_2_0_3_data.device_id)
Filter: (_timescaledb_catalog.get_partition_for_key(_hyper_1_2_0_3_data.device_id, 32768) = '28646'::smallint)
-> Bitmap Index Scan on "13-two_Partitions_device_id_timeCustom_idx"
Index Cond: ('dev20'::text = _hyper_1_2_0_3_data.device_id)
(13 rows)
--TODO: handle this later?
--EXPLAIN (verbose ON, costs off) SELECT * FROM "two_Partitions" WHERE device_id IN ('dev20', 'dev21');
\echo "The following shows non-aggregated queries with time desc using merge append"
"The following shows non-aggregated queries with time desc using merge append"
EXPLAIN (verbose ON, costs off)SELECT * FROM PUBLIC."two_Partitions" ORDER BY "timeCustom" DESC NULLS LAST limit 2;
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Limit
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
-> Merge Append
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Sort
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
-> Sort
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.device_id, _hyper_1_1_0_partition.series_0, _hyper_1_1_0_partition.series_1, _hyper_1_1_0_partition.series_2, _hyper_1_1_0_partition.series_bool
Sort Key: _hyper_1_1_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_partition
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.device_id, _hyper_1_1_0_partition.series_0, _hyper_1_1_0_partition.series_1, _hyper_1_1_0_partition.series_2, _hyper_1_1_0_partition.series_bool
-> Sort
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Sort Key: _hyper_1_2_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
-> Index Scan using "6-two_Partitions_timeCustom_device_id_idx" on _timescaledb_internal._hyper_1_1_0_1_data
Output: _hyper_1_1_0_1_data."timeCustom", _hyper_1_1_0_1_data.device_id, _hyper_1_1_0_1_data.series_0, _hyper_1_1_0_1_data.series_1, _hyper_1_1_0_1_data.series_2, _hyper_1_1_0_1_data.series_bool
-> Index Scan using "12-two_Partitions_timeCustom_device_id_idx" on _timescaledb_internal._hyper_1_1_0_2_data
Output: _hyper_1_1_0_2_data."timeCustom", _hyper_1_1_0_2_data.device_id, _hyper_1_1_0_2_data.series_0, _hyper_1_1_0_2_data.series_1, _hyper_1_1_0_2_data.series_2, _hyper_1_1_0_2_data.series_bool
-> Index Scan using "18-two_Partitions_timeCustom_device_id_idx" on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.device_id, _hyper_1_2_0_3_data.series_0, _hyper_1_2_0_3_data.series_1, _hyper_1_2_0_3_data.series_2, _hyper_1_2_0_3_data.series_bool
(25 rows)
--shows that more specific indexes are used if the WHERE clauses "match", uses the series_1 index here.
EXPLAIN (verbose ON, costs off)SELECT * FROM PUBLIC."two_Partitions" WHERE series_1 IS NOT NULL ORDER BY "timeCustom" DESC NULLS LAST limit 2;
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Limit
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
-> Merge Append
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Sort
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Filter: (_hyper_1_0_replica.series_1 IS NOT NULL)
-> Sort
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.device_id, _hyper_1_1_0_partition.series_0, _hyper_1_1_0_partition.series_1, _hyper_1_1_0_partition.series_2, _hyper_1_1_0_partition.series_bool
Sort Key: _hyper_1_1_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_partition
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.device_id, _hyper_1_1_0_partition.series_0, _hyper_1_1_0_partition.series_1, _hyper_1_1_0_partition.series_2, _hyper_1_1_0_partition.series_bool
Filter: (_hyper_1_1_0_partition.series_1 IS NOT NULL)
-> Sort
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Sort Key: _hyper_1_2_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Filter: (_hyper_1_2_0_partition.series_1 IS NOT NULL)
-> Index Scan using "3-two_Partitions_timeCustom_series_1_idx" on _timescaledb_internal._hyper_1_1_0_1_data
Output: _hyper_1_1_0_1_data."timeCustom", _hyper_1_1_0_1_data.device_id, _hyper_1_1_0_1_data.series_0, _hyper_1_1_0_1_data.series_1, _hyper_1_1_0_1_data.series_2, _hyper_1_1_0_1_data.series_bool
-> Index Scan using "9-two_Partitions_timeCustom_series_1_idx" on _timescaledb_internal._hyper_1_1_0_2_data
Output: _hyper_1_1_0_2_data."timeCustom", _hyper_1_1_0_2_data.device_id, _hyper_1_1_0_2_data.series_0, _hyper_1_1_0_2_data.series_1, _hyper_1_1_0_2_data.series_2, _hyper_1_1_0_2_data.series_bool
-> Index Scan using "15-two_Partitions_timeCustom_series_1_idx" on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.device_id, _hyper_1_2_0_3_data.series_0, _hyper_1_2_0_3_data.series_1, _hyper_1_2_0_3_data.series_2, _hyper_1_2_0_3_data.series_bool
(28 rows)
--here the "match" is implication series_1 > 1 => series_1 IS NOT NULL
EXPLAIN (verbose ON, costs off)SELECT * FROM PUBLIC."two_Partitions" WHERE series_1 > 1 ORDER BY "timeCustom" DESC NULLS LAST limit 2;
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Limit
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
-> Merge Append
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Sort
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.device_id, _hyper_1_0_replica.series_0, _hyper_1_0_replica.series_1, _hyper_1_0_replica.series_2, _hyper_1_0_replica.series_bool
Filter: (_hyper_1_0_replica.series_1 > '1'::double precision)
-> Sort
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.device_id, _hyper_1_1_0_partition.series_0, _hyper_1_1_0_partition.series_1, _hyper_1_1_0_partition.series_2, _hyper_1_1_0_partition.series_bool
Sort Key: _hyper_1_1_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_partition
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.device_id, _hyper_1_1_0_partition.series_0, _hyper_1_1_0_partition.series_1, _hyper_1_1_0_partition.series_2, _hyper_1_1_0_partition.series_bool
Filter: (_hyper_1_1_0_partition.series_1 > '1'::double precision)
-> Sort
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Sort Key: _hyper_1_2_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.device_id, _hyper_1_2_0_partition.series_0, _hyper_1_2_0_partition.series_1, _hyper_1_2_0_partition.series_2, _hyper_1_2_0_partition.series_bool
Filter: (_hyper_1_2_0_partition.series_1 > '1'::double precision)
-> Index Scan using "3-two_Partitions_timeCustom_series_1_idx" on _timescaledb_internal._hyper_1_1_0_1_data
Output: _hyper_1_1_0_1_data."timeCustom", _hyper_1_1_0_1_data.device_id, _hyper_1_1_0_1_data.series_0, _hyper_1_1_0_1_data.series_1, _hyper_1_1_0_1_data.series_2, _hyper_1_1_0_1_data.series_bool
Index Cond: (_hyper_1_1_0_1_data.series_1 > '1'::double precision)
-> Index Scan using "9-two_Partitions_timeCustom_series_1_idx" on _timescaledb_internal._hyper_1_1_0_2_data
Output: _hyper_1_1_0_2_data."timeCustom", _hyper_1_1_0_2_data.device_id, _hyper_1_1_0_2_data.series_0, _hyper_1_1_0_2_data.series_1, _hyper_1_1_0_2_data.series_2, _hyper_1_1_0_2_data.series_bool
Index Cond: (_hyper_1_1_0_2_data.series_1 > '1'::double precision)
-> Index Scan using "15-two_Partitions_timeCustom_series_1_idx" on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.device_id, _hyper_1_2_0_3_data.series_0, _hyper_1_2_0_3_data.series_1, _hyper_1_2_0_3_data.series_2, _hyper_1_2_0_3_data.series_bool
Index Cond: (_hyper_1_2_0_3_data.series_1 > '1'::double precision)
(31 rows)
--note that without time transform things work too
EXPLAIN (verbose ON, costs off)SELECT "timeCustom" t, min(series_0) FROM PUBLIC."two_Partitions" GROUP BY t ORDER BY t DESC NULLS LAST limit 2;
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------
Limit
Output: _hyper_1_0_replica."timeCustom", (min(_hyper_1_0_replica.series_0))
-> GroupAggregate
Output: _hyper_1_0_replica."timeCustom", min(_hyper_1_0_replica.series_0)
Group Key: _hyper_1_0_replica."timeCustom"
-> Merge Append
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Sort
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.series_0
Sort Key: _hyper_1_0_replica."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.series_0
-> Sort
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.series_0
Sort Key: _hyper_1_1_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_partition
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.series_0
-> Sort
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.series_0
Sort Key: _hyper_1_2_0_partition."timeCustom" DESC NULLS LAST
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.series_0
-> Index Scan using "6-two_Partitions_timeCustom_device_id_idx" on _timescaledb_internal._hyper_1_1_0_1_data
Output: _hyper_1_1_0_1_data."timeCustom", _hyper_1_1_0_1_data.series_0
-> Index Scan using "12-two_Partitions_timeCustom_device_id_idx" on _timescaledb_internal._hyper_1_1_0_2_data
Output: _hyper_1_1_0_2_data."timeCustom", _hyper_1_1_0_2_data.series_0
-> Index Scan using "18-two_Partitions_timeCustom_device_id_idx" on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.series_0
(28 rows)
--TODO: time transform doesn't work
EXPLAIN (verbose ON, costs off)SELECT "timeCustom"/10 t, min(series_0) FROM PUBLIC."two_Partitions" GROUP BY t ORDER BY t DESC NULLS LAST limit 2;
QUERY PLAN
--------------------------------------------------------------------------------------------------------------
Limit
Output: ((_hyper_1_0_replica."timeCustom" / 10)), (min(_hyper_1_0_replica.series_0))
-> Sort
Output: ((_hyper_1_0_replica."timeCustom" / 10)), (min(_hyper_1_0_replica.series_0))
Sort Key: ((_hyper_1_0_replica."timeCustom" / 10)) DESC NULLS LAST
-> HashAggregate
Output: ((_hyper_1_0_replica."timeCustom" / 10)), min(_hyper_1_0_replica.series_0)
Group Key: (_hyper_1_0_replica."timeCustom" / 10)
-> Result
Output: (_hyper_1_0_replica."timeCustom" / 10), _hyper_1_0_replica.series_0
-> Append
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_partition
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_1_data
Output: _hyper_1_1_0_1_data."timeCustom", _hyper_1_1_0_1_data.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_2_data
Output: _hyper_1_1_0_2_data."timeCustom", _hyper_1_1_0_2_data.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.series_0
(23 rows)
EXPLAIN (verbose ON, costs off)SELECT "timeCustom"%10 t, min(series_0) FROM PUBLIC."two_Partitions" GROUP BY t ORDER BY t DESC NULLS LAST limit 2;
QUERY PLAN
--------------------------------------------------------------------------------------------------------------
Limit
Output: ((_hyper_1_0_replica."timeCustom" % '10'::bigint)), (min(_hyper_1_0_replica.series_0))
-> Sort
Output: ((_hyper_1_0_replica."timeCustom" % '10'::bigint)), (min(_hyper_1_0_replica.series_0))
Sort Key: ((_hyper_1_0_replica."timeCustom" % '10'::bigint)) DESC NULLS LAST
-> HashAggregate
Output: ((_hyper_1_0_replica."timeCustom" % '10'::bigint)), min(_hyper_1_0_replica.series_0)
Group Key: (_hyper_1_0_replica."timeCustom" % '10'::bigint)
-> Result
Output: (_hyper_1_0_replica."timeCustom" % '10'::bigint), _hyper_1_0_replica.series_0
-> Append
-> Seq Scan on _timescaledb_internal._hyper_1_0_replica
Output: _hyper_1_0_replica."timeCustom", _hyper_1_0_replica.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_partition
Output: _hyper_1_1_0_partition."timeCustom", _hyper_1_1_0_partition.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_partition
Output: _hyper_1_2_0_partition."timeCustom", _hyper_1_2_0_partition.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_1_data
Output: _hyper_1_1_0_1_data."timeCustom", _hyper_1_1_0_1_data.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_1_0_2_data
Output: _hyper_1_1_0_2_data."timeCustom", _hyper_1_1_0_2_data.series_0
-> Seq Scan on _timescaledb_internal._hyper_1_2_0_3_data
Output: _hyper_1_2_0_3_data."timeCustom", _hyper_1_2_0_3_data.series_0
(23 rows)
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