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--
-- 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;
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