mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-18 11:45:11 +08:00
1e9bc6895b
The following fields are added: -num_compressed_hypertables -compressed_KIND_size -uncompressed_KIND_size Where KIND = heap, index, toast. `num_hypertables` field does NOT count the internal hypertables used for compressed data. We also removed internal continuous aggs tables from the `num_hypertables` count.
36 lines
2.6 KiB
SQL
36 lines
2.6 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.
|
|
|
|
--telemetry tests that involve compression (not to be run for PG 9.6)
|
|
--create a continuous agg
|
|
|
|
CREATE TABLE device_readings (
|
|
observation_time TIMESTAMPTZ NOT NULL
|
|
);
|
|
SELECT table_name FROM create_hypertable('device_readings', 'observation_time');
|
|
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'num_hypertables');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'num_compressed_hypertables');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'compressed_heap_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'compressed_index_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'compressed_toast_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'uncompressed_heap_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'uncompressed_index_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'uncompressed_toast_size');
|
|
|
|
--test compression
|
|
ALTER TABLE device_readings SET(timescaledb.compress);
|
|
insert into device_readings select generate_series('2018-01-01 00:00'::timestamp, '2018-01-02 00:00'::timestamp, '1 hour');
|
|
select count(compress_chunk(ch1.schema_name|| '.' || ch1.table_name))
|
|
FROM _timescaledb_catalog.chunk ch1, _timescaledb_catalog.hypertable ht where ch1.hypertable_id = ht.id and ht.table_name like 'device_readings';
|
|
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'num_hypertables');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'num_compressed_hypertables');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'compressed_heap_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'compressed_index_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'compressed_toast_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'uncompressed_heap_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'uncompressed_index_size');
|
|
SELECT json_object_field(get_telemetry_report(always_display_report := true)::json,'uncompressed_toast_size');
|