mirror of
https://github.com/postgres/postgres.git
synced 2025-05-28 05:21:27 +03:00
9a714b9d6e
As shaped, two DROP ROLE queries included in "user_activity" were showing in the reports for "wal". The intention is to keep each test isolated and independent, so this is incorrect. This commit adds some calls to pg_stat_statements_reset() to clean up the statistics once each test finishes, so as there are no risks of overlap in the reports for individial scenarios. The addition in "user_activity" fixes the output of "wal". The new resets done in "level_tracking" and "utility" are added for consistency with the rest, though they do not affect the stats generated in the other tests. Oversight in d0028e3. Reported-by: Andrei Zubkov Discussion: https://postgr.es/m/7beb722dd016bf54f1c78bfd6d44a684e28da624.camel@moonset.ru
211 lines
5.0 KiB
Plaintext
211 lines
5.0 KiB
Plaintext
--
|
|
-- Statement level tracking
|
|
--
|
|
SET pg_stat_statements.track_utility = TRUE;
|
|
SELECT pg_stat_statements_reset();
|
|
pg_stat_statements_reset
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
-- DO block - top-level tracking.
|
|
CREATE TABLE stats_track_tab (x int);
|
|
SET pg_stat_statements.track = 'top';
|
|
DELETE FROM stats_track_tab;
|
|
DO $$
|
|
BEGIN
|
|
DELETE FROM stats_track_tab;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
SELECT toplevel, calls, query FROM pg_stat_statements
|
|
WHERE query LIKE '%DELETE%' ORDER BY query COLLATE "C", toplevel;
|
|
toplevel | calls | query
|
|
----------+-------+--------------------------------
|
|
t | 1 | DELETE FROM stats_track_tab
|
|
t | 1 | DO $$ +
|
|
| | BEGIN +
|
|
| | DELETE FROM stats_track_tab;+
|
|
| | END; +
|
|
| | $$ LANGUAGE plpgsql
|
|
(2 rows)
|
|
|
|
SELECT pg_stat_statements_reset();
|
|
pg_stat_statements_reset
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
-- DO block - all-level tracking.
|
|
SET pg_stat_statements.track = 'all';
|
|
DELETE FROM stats_track_tab;
|
|
DO $$
|
|
BEGIN
|
|
DELETE FROM stats_track_tab;
|
|
END; $$;
|
|
DO LANGUAGE plpgsql $$
|
|
BEGIN
|
|
-- this is a SELECT
|
|
PERFORM 'hello world'::TEXT;
|
|
END; $$;
|
|
SELECT toplevel, calls, query FROM pg_stat_statements
|
|
ORDER BY query COLLATE "C", toplevel;
|
|
toplevel | calls | query
|
|
----------+-------+--------------------------------------
|
|
f | 1 | DELETE FROM stats_track_tab
|
|
t | 1 | DELETE FROM stats_track_tab
|
|
t | 1 | DO $$ +
|
|
| | BEGIN +
|
|
| | DELETE FROM stats_track_tab; +
|
|
| | END; $$
|
|
t | 1 | DO LANGUAGE plpgsql $$ +
|
|
| | BEGIN +
|
|
| | -- this is a SELECT +
|
|
| | PERFORM 'hello world'::TEXT; +
|
|
| | END; $$
|
|
f | 1 | SELECT $1::TEXT
|
|
t | 1 | SELECT pg_stat_statements_reset()
|
|
t | 1 | SET pg_stat_statements.track = 'all'
|
|
(7 rows)
|
|
|
|
-- PL/pgSQL function - top-level tracking.
|
|
SET pg_stat_statements.track = 'top';
|
|
SET pg_stat_statements.track_utility = FALSE;
|
|
SELECT pg_stat_statements_reset();
|
|
pg_stat_statements_reset
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
CREATE FUNCTION PLUS_TWO(i INTEGER) RETURNS INTEGER AS $$
|
|
DECLARE
|
|
r INTEGER;
|
|
BEGIN
|
|
SELECT (i + 1 + 1.0)::INTEGER INTO r;
|
|
RETURN r;
|
|
END; $$ LANGUAGE plpgsql;
|
|
SELECT PLUS_TWO(3);
|
|
plus_two
|
|
----------
|
|
5
|
|
(1 row)
|
|
|
|
SELECT PLUS_TWO(7);
|
|
plus_two
|
|
----------
|
|
9
|
|
(1 row)
|
|
|
|
-- SQL function --- use LIMIT to keep it from being inlined
|
|
CREATE FUNCTION PLUS_ONE(i INTEGER) RETURNS INTEGER AS
|
|
$$ SELECT (i + 1.0)::INTEGER LIMIT 1 $$ LANGUAGE SQL;
|
|
SELECT PLUS_ONE(8);
|
|
plus_one
|
|
----------
|
|
9
|
|
(1 row)
|
|
|
|
SELECT PLUS_ONE(10);
|
|
plus_one
|
|
----------
|
|
11
|
|
(1 row)
|
|
|
|
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
calls | rows | query
|
|
-------+------+-----------------------------------
|
|
2 | 2 | SELECT PLUS_ONE($1)
|
|
2 | 2 | SELECT PLUS_TWO($1)
|
|
1 | 1 | SELECT pg_stat_statements_reset()
|
|
(3 rows)
|
|
|
|
-- PL/pgSQL function - all-level tracking.
|
|
SET pg_stat_statements.track = 'all';
|
|
SELECT pg_stat_statements_reset();
|
|
pg_stat_statements_reset
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
-- we drop and recreate the functions to avoid any caching funnies
|
|
DROP FUNCTION PLUS_ONE(INTEGER);
|
|
DROP FUNCTION PLUS_TWO(INTEGER);
|
|
-- PL/pgSQL function
|
|
CREATE FUNCTION PLUS_TWO(i INTEGER) RETURNS INTEGER AS $$
|
|
DECLARE
|
|
r INTEGER;
|
|
BEGIN
|
|
SELECT (i + 1 + 1.0)::INTEGER INTO r;
|
|
RETURN r;
|
|
END; $$ LANGUAGE plpgsql;
|
|
SELECT PLUS_TWO(-1);
|
|
plus_two
|
|
----------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT PLUS_TWO(2);
|
|
plus_two
|
|
----------
|
|
4
|
|
(1 row)
|
|
|
|
-- SQL function --- use LIMIT to keep it from being inlined
|
|
CREATE FUNCTION PLUS_ONE(i INTEGER) RETURNS INTEGER AS
|
|
$$ SELECT (i + 1.0)::INTEGER LIMIT 1 $$ LANGUAGE SQL;
|
|
SELECT PLUS_ONE(3);
|
|
plus_one
|
|
----------
|
|
4
|
|
(1 row)
|
|
|
|
SELECT PLUS_ONE(1);
|
|
plus_one
|
|
----------
|
|
2
|
|
(1 row)
|
|
|
|
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
calls | rows | query
|
|
-------+------+-----------------------------------
|
|
2 | 2 | SELECT (i + $2 + $3)::INTEGER
|
|
2 | 2 | SELECT (i + $2)::INTEGER LIMIT $3
|
|
2 | 2 | SELECT PLUS_ONE($1)
|
|
2 | 2 | SELECT PLUS_TWO($1)
|
|
1 | 1 | SELECT pg_stat_statements_reset()
|
|
(5 rows)
|
|
|
|
DROP FUNCTION PLUS_ONE(INTEGER);
|
|
--
|
|
-- pg_stat_statements.track = none
|
|
--
|
|
SET pg_stat_statements.track = 'none';
|
|
SELECT pg_stat_statements_reset();
|
|
pg_stat_statements_reset
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT 1 AS "one";
|
|
one
|
|
-----
|
|
1
|
|
(1 row)
|
|
|
|
SELECT 1 + 1 AS "two";
|
|
two
|
|
-----
|
|
2
|
|
(1 row)
|
|
|
|
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
calls | rows | query
|
|
-------+------+-------
|
|
(0 rows)
|
|
|
|
SELECT pg_stat_statements_reset();
|
|
pg_stat_statements_reset
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|