mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-31 01:15:18 +08:00
931da9a656
Fix a number of issues with size and stats functions: * Return `0` size instead of `NULL` in several functions when hypertables have no chunks (e.g., `hypertable_size`, `hypertable_detailed_size`). * Return `NULL` when functions are called on non-hypertables instead of simply failing with generic error `query returned no rows`. * Include size of "root" hypertable, which can have non-zero size indexes and other objects even if the root table holds no data. * Make `hypertable_detailed_size` include one additional row for storage size of objects on the access node. While the access node stores no data, the empty hypertable may still take up some disk space. * Improve test coverage for all size utility functions. In particular, add tests on regular tables as well as empty and compressed hypertables. * Several size utility functions that were defined as `PL/pgSQL` functions have been converted to simple `SQL` functions since they ran only a single SQL query. The `dist_util` test is moved to the solo test group because, otherwise, it gives different size output when run in parallel vs. in isolation. Fixes #2871
184 lines
8.2 KiB
Plaintext
184 lines
8.2 KiB
Plaintext
-- This file and its contents are licensed under the Apache License 2.0.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-APACHE for a copy of the license.
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-- Set this variable to avoid using a hard-coded path each time query
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-- results are compared
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\set QUERY_RESULT_TEST_EQUAL_RELPATH 'include/query_result_test_equal.sql'
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\c postgres :ROLE_SUPERUSER
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DROP DATABASE :TEST_DBNAME;
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CREATE DATABASE :TEST_DBNAME;
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\c :TEST_DBNAME
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CREATE SCHEMA "testSchema0";
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SET client_min_messages=error;
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CREATE EXTENSION IF NOT EXISTS timescaledb SCHEMA "testSchema0";
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RESET client_min_messages;
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CREATE TABLE test_ts(time timestamp, temp float8, device text);
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CREATE TABLE test_tz(time timestamptz, temp float8, device text);
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CREATE TABLE test_dt(time date, temp float8, device text);
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SELECT "testSchema0".create_hypertable('test_ts', 'time', 'device', 2);
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NOTICE: adding not-null constraint to column "time"
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create_hypertable
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----------------------
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(1,public,test_ts,t)
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(1 row)
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SELECT "testSchema0".create_hypertable('test_tz', 'time', 'device', 2);
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NOTICE: adding not-null constraint to column "time"
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create_hypertable
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----------------------
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(2,public,test_tz,t)
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(1 row)
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SELECT "testSchema0".create_hypertable('test_dt', 'time', 'device', 2);
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NOTICE: adding not-null constraint to column "time"
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create_hypertable
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----------------------
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(3,public,test_dt,t)
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(1 row)
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SELECT * FROM _timescaledb_catalog.hypertable;
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id | schema_name | table_name | associated_schema_name | associated_table_prefix | num_dimensions | chunk_sizing_func_schema | chunk_sizing_func_name | chunk_target_size | compression_state | compressed_hypertable_id | replication_factor
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----+-------------+------------+------------------------+-------------------------+----------------+--------------------------+--------------------------+-------------------+-------------------+--------------------------+--------------------
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1 | public | test_ts | _timescaledb_internal | _hyper_1 | 2 | _timescaledb_internal | calculate_chunk_interval | 0 | 0 | |
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2 | public | test_tz | _timescaledb_internal | _hyper_2 | 2 | _timescaledb_internal | calculate_chunk_interval | 0 | 0 | |
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3 | public | test_dt | _timescaledb_internal | _hyper_3 | 2 | _timescaledb_internal | calculate_chunk_interval | 0 | 0 | |
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(3 rows)
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INSERT INTO test_ts VALUES('Mon Mar 20 09:17:00.936242 2017', 23.4, 'dev1');
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INSERT INTO test_ts VALUES('Mon Mar 20 09:27:00.936242 2017', 22, 'dev2');
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INSERT INTO test_ts VALUES('Mon Mar 20 09:28:00.936242 2017', 21.2, 'dev1');
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INSERT INTO test_ts VALUES('Mon Mar 20 09:37:00.936242 2017', 30, 'dev3');
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SELECT * FROM test_ts ORDER BY time;
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time | temp | device
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---------------------------------+------+--------
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Mon Mar 20 09:17:00.936242 2017 | 23.4 | dev1
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Mon Mar 20 09:27:00.936242 2017 | 22 | dev2
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Mon Mar 20 09:28:00.936242 2017 | 21.2 | dev1
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Mon Mar 20 09:37:00.936242 2017 | 30 | dev3
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(4 rows)
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INSERT INTO test_tz VALUES('Mon Mar 20 09:17:00.936242 2017', 23.4, 'dev1');
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INSERT INTO test_tz VALUES('Mon Mar 20 09:27:00.936242 2017', 22, 'dev2');
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INSERT INTO test_tz VALUES('Mon Mar 20 09:28:00.936242 2017', 21.2, 'dev1');
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INSERT INTO test_tz VALUES('Mon Mar 20 09:37:00.936242 2017', 30, 'dev3');
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SELECT * FROM test_tz ORDER BY time;
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time | temp | device
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-------------------------------------+------+--------
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Mon Mar 20 09:17:00.936242 2017 PDT | 23.4 | dev1
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Mon Mar 20 09:27:00.936242 2017 PDT | 22 | dev2
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Mon Mar 20 09:28:00.936242 2017 PDT | 21.2 | dev1
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Mon Mar 20 09:37:00.936242 2017 PDT | 30 | dev3
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(4 rows)
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INSERT INTO test_dt VALUES('Mon Mar 20 09:17:00.936242 2017', 23.4, 'dev1');
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INSERT INTO test_dt VALUES('Mon Mar 21 09:27:00.936242 2017', 22, 'dev2');
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INSERT INTO test_dt VALUES('Mon Mar 22 09:28:00.936242 2017', 21.2, 'dev1');
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INSERT INTO test_dt VALUES('Mon Mar 23 09:37:00.936242 2017', 30, 'dev3');
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SELECT * FROM test_dt ORDER BY time;
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time | temp | device
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------------+------+--------
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03-20-2017 | 23.4 | dev1
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03-21-2017 | 22 | dev2
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03-22-2017 | 21.2 | dev1
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03-23-2017 | 30 | dev3
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(4 rows)
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-- testing time_bucket START
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SELECT AVG(temp) AS avg_tmp, "testSchema0".time_bucket('5 minutes', time, INTERVAL '1 minutes') AS ten_min FROM test_ts GROUP BY ten_min ORDER BY avg_tmp;
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avg_tmp | ten_min
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---------+--------------------------
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21.6 | Mon Mar 20 09:26:00 2017
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23.4 | Mon Mar 20 09:16:00 2017
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30 | Mon Mar 20 09:36:00 2017
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(3 rows)
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SELECT AVG(temp) AS avg_tmp, "testSchema0".time_bucket('5 minutes', time, INTERVAL '1 minutes') AS ten_min FROM test_tz GROUP BY ten_min ORDER BY avg_tmp;
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avg_tmp | ten_min
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---------+------------------------------
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21.6 | Mon Mar 20 09:26:00 2017 PDT
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23.4 | Mon Mar 20 09:16:00 2017 PDT
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30 | Mon Mar 20 09:36:00 2017 PDT
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(3 rows)
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SELECT AVG(temp) AS avg_tmp, "testSchema0".time_bucket('1 day', time, INTERVAL '-0.5 day') AS ten_min FROM test_dt GROUP BY ten_min ORDER BY avg_tmp;
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avg_tmp | ten_min
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---------+------------
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21.2 | 03-21-2017
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22 | 03-20-2017
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23.4 | 03-19-2017
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30 | 03-22-2017
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(4 rows)
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-- testing time_bucket END
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-- testing drop_chunks START
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-- show_chunks and drop_chunks output should be the same
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\set QUERY1 'SELECT "testSchema0".show_chunks(older_than => \'2017-03-01\'::timestamp, relation => \'test_ts\')::REGCLASS::TEXT'
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\set QUERY2 'SELECT "testSchema0".drop_chunks(\'test_ts\', \'2017-03-01\'::timestamp)::TEXT'
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\set ECHO errors
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Different Rows | Total Rows from Query 1 | Total Rows from Query 2
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----------------+-------------------------+-------------------------
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0 | 0 | 0
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(1 row)
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SELECT * FROM test_ts ORDER BY time;
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time | temp | device
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---------------------------------+------+--------
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Mon Mar 20 09:17:00.936242 2017 | 23.4 | dev1
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Mon Mar 20 09:27:00.936242 2017 | 22 | dev2
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Mon Mar 20 09:28:00.936242 2017 | 21.2 | dev1
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Mon Mar 20 09:37:00.936242 2017 | 30 | dev3
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(4 rows)
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\set QUERY1 'SELECT "testSchema0".show_chunks(older_than => interval \'1 minutes\', relation => \'test_tz\')::REGCLASS::TEXT'
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\set QUERY2 'SELECT "testSchema0".drop_chunks(\'test_tz\', interval \'1 minutes\')::TEXT'
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\set ECHO errors
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Different Rows | Total Rows from Query 1 | Total Rows from Query 2
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----------------+-------------------------+-------------------------
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0 | 2 | 2
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(1 row)
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SELECT * FROM test_tz ORDER BY time;
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time | temp | device
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------+------+--------
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(0 rows)
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\set QUERY1 'SELECT "testSchema0".show_chunks(older_than => interval \'1 minutes\', relation => \'test_dt\')::REGCLASS::TEXT'
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\set QUERY2 'SELECT "testSchema0".drop_chunks(\'test_dt\', interval \'1 minutes\')::TEXT'
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\set ECHO errors
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Different Rows | Total Rows from Query 1 | Total Rows from Query 2
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----------------+-------------------------+-------------------------
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0 | 3 | 3
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(1 row)
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SELECT * FROM test_dt ORDER BY time;
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time | temp | device
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------+------+--------
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(0 rows)
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-- testing drop_chunks END
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-- testing hypertable_detailed_size START
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SELECT * FROM "testSchema0".hypertable_detailed_size('test_ts');
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table_bytes | index_bytes | toast_bytes | total_bytes | node_name
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-------------+-------------+-------------+-------------+-----------
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16384 | 81920 | 16384 | 122880 |
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(1 row)
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-- testing hypertable_detailed_size END
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SELECT * FROM "testSchema0".hypertable_index_size('test_ts_time_idx');
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hypertable_index_size
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-----------------------
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40960
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(1 row)
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SELECT * FROM "testSchema0".hypertable_index_size('test_ts_device_time_idx');
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hypertable_index_size
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-----------------------
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40960
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(1 row)
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CREATE SCHEMA "testSchema";
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\set ON_ERROR_STOP 0
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ALTER EXTENSION timescaledb SET SCHEMA "testSchema";
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ERROR: extension "timescaledb" does not support SET SCHEMA
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\set ON_ERROR_STOP 1
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