mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-16 02:23:49 +08:00
0477f40fb8
This patch removes PG 9.6 and PG 10 test output files and merges the output files where PG11 output does not differ from PG12 output. Removing code support for these versions will be in a subsequent patch.
33 lines
1.5 KiB
SQL
33 lines
1.5 KiB
SQL
-- This file and its contents are licensed under the Apache License 2.0.
|
|
-- Please see the included NOTICE for copyright information and
|
|
-- LICENSE-APACHE for a copy of the license.
|
|
|
|
CREATE TABLE many_partitions_test(time timestamp, temp float8, device text NOT NULL);
|
|
SELECT create_hypertable('many_partitions_test', 'time', 'device', 1000);
|
|
--NOTE: how much slower the first two queries are -- they are creating chunks
|
|
INSERT INTO many_partitions_test
|
|
SELECT to_timestamp(ser), ser, ser::text FROM generate_series(1,100) ser;
|
|
INSERT INTO many_partitions_test
|
|
SELECT to_timestamp(ser), ser, ser::text FROM generate_series(101,200) ser;
|
|
INSERT INTO many_partitions_test
|
|
SELECT to_timestamp(ser), ser, (ser-201)::text FROM generate_series(201,300) ser;
|
|
|
|
SELECT * FROM many_partitions_test ORDER BY time DESC LIMIT 2;
|
|
SELECT count(*) FROM many_partitions_test;
|
|
|
|
CREATE TABLE many_partitions_test_1m (time timestamp, temp float8, device text NOT NULL);
|
|
SELECT create_hypertable('many_partitions_test_1m', 'time', 'device', 1000);
|
|
|
|
EXPLAIN (verbose on, costs off)
|
|
INSERT INTO many_partitions_test_1m(time, temp, device)
|
|
SELECT time_bucket('1 minute', time) AS period, avg(temp), device
|
|
FROM many_partitions_test
|
|
GROUP BY period, device;
|
|
|
|
INSERT INTO many_partitions_test_1m(time, temp, device)
|
|
SELECT time_bucket('1 minute', time) AS period, avg(temp), device
|
|
FROM many_partitions_test
|
|
GROUP BY period, device;
|
|
|
|
SELECT * FROM many_partitions_test_1m ORDER BY time, device LIMIT 10;
|