mirror of
https://github.com/postgres/postgres.git
synced 2025-04-21 12:05:57 +03:00
6ab1dbd26b
This is preliminary patch. It adds NOT NULL checking for the result of pg_stat_statements_reset() function. It is needed for upcoming patch "Track statement entry timestamp" that will change the result type of this function to the timestamp of a reset performed. Discussion: https://postgr.es/m/flat/72e80e7b160a6eb189df9ef6f068cce3765d37f8.camel%40moonset.ru Author: Andrei Zubkov Reviewed-by: Julien Rouhaud, Hayato Kuroda, Yuki Seino, Chengxi Sun Reviewed-by: Anton Melnikov, Darren Rush, Michael Paquier, Sergei Kornilov Reviewed-by: Alena Rybakina, Andrei Lepikhov
68 lines
1.9 KiB
SQL
68 lines
1.9 KiB
SQL
--
|
|
-- Track user activity and reset them
|
|
--
|
|
|
|
SET pg_stat_statements.track_utility = TRUE;
|
|
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
|
|
CREATE ROLE regress_stats_user1;
|
|
CREATE ROLE regress_stats_user2;
|
|
|
|
SET ROLE regress_stats_user1;
|
|
|
|
SELECT 1 AS "ONE";
|
|
SELECT 1+1 AS "TWO";
|
|
|
|
RESET ROLE;
|
|
SET ROLE regress_stats_user2;
|
|
|
|
SELECT 1 AS "ONE";
|
|
SELECT 1+1 AS "TWO";
|
|
|
|
RESET ROLE;
|
|
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
|
|
--
|
|
-- Don't reset anything if any of the parameter is NULL
|
|
--
|
|
SELECT pg_stat_statements_reset(NULL) IS NOT NULL AS t;
|
|
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
|
|
--
|
|
-- remove query ('SELECT $1+$2 AS "TWO"') executed by regress_stats_user2
|
|
-- in the current_database
|
|
--
|
|
SELECT pg_stat_statements_reset(
|
|
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user2'),
|
|
(SELECT d.oid FROM pg_database As d where datname = current_database()),
|
|
(SELECT s.queryid FROM pg_stat_statements AS s
|
|
WHERE s.query = 'SELECT $1+$2 AS "TWO"' LIMIT 1))
|
|
IS NOT NULL AS t;
|
|
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
|
|
--
|
|
-- remove query ('SELECT $1 AS "ONE"') executed by two users
|
|
--
|
|
SELECT pg_stat_statements_reset(0,0,s.queryid) IS NOT NULL AS t
|
|
FROM pg_stat_statements AS s WHERE s.query = 'SELECT $1 AS "ONE"';
|
|
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
|
|
--
|
|
-- remove query of a user (regress_stats_user1)
|
|
--
|
|
SELECT pg_stat_statements_reset(r.oid) IS NOT NULL AS t
|
|
FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user1';
|
|
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
|
|
--
|
|
-- reset all
|
|
--
|
|
SELECT pg_stat_statements_reset(0,0,0) IS NOT NULL AS t;
|
|
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
|
|
--
|
|
-- cleanup
|
|
--
|
|
DROP ROLE regress_stats_user1;
|
|
DROP ROLE regress_stats_user2;
|
|
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
|