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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;
t
---
t
(1 row)
CREATE ROLE regress_stats_user1;
CREATE ROLE regress_stats_user2;
SET ROLE regress_stats_user1;
SELECT 1 AS "ONE";
ONE
-----
1
(1 row)
SELECT 1+1 AS "TWO";
TWO
-----
2
(1 row)
RESET ROLE;
SET ROLE regress_stats_user2;
SELECT 1 AS "ONE";
ONE
-----
1
(1 row)
SELECT 1+1 AS "TWO";
TWO
-----
2
(1 row)
RESET ROLE;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1 | 1
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(10 rows)
--
-- Don't reset anything if any of the parameter is NULL
--
SELECT pg_stat_statements_reset(NULL) IS NOT NULL AS t;
t
---
f
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset($1) IS NOT NULL AS t | 1 | 1
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 1 | 10
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(12 rows)
--
-- 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;
t
---
t
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) +| |
IS NOT NULL AS t | |
SELECT pg_stat_statements_reset($1) IS NOT NULL AS t | 1 | 1
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 2 | 22
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(12 rows)
--
-- 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"';
t
---
t
t
(2 rows)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) +| |
IS NOT NULL AS t | |
SELECT pg_stat_statements_reset($1) IS NOT NULL AS t | 1 | 1
SELECT pg_stat_statements_reset($1,$2,s.queryid) IS NOT NULL AS t +| 1 | 2
FROM pg_stat_statements AS s WHERE s.query = $3 | |
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 3 | 34
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(11 rows)
--
-- 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';
t
---
t
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) +| |
IS NOT NULL AS t | |
SELECT pg_stat_statements_reset($1) IS NOT NULL AS t | 1 | 1
SELECT pg_stat_statements_reset($1,$2,s.queryid) IS NOT NULL AS t +| 1 | 2
FROM pg_stat_statements AS s WHERE s.query = $3 | |
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1 | 1
SELECT pg_stat_statements_reset(r.oid) IS NOT NULL AS t +| 1 | 1
FROM pg_roles AS r WHERE r.rolname = $1 | |
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 4 | 45
SET ROLE regress_stats_user2 | 1 | 0
(10 rows)
--
-- reset all
--
SELECT pg_stat_statements_reset(0,0,0) IS NOT NULL AS t;
t
---
t
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
---------------------------------------------------------+-------+------
SELECT pg_stat_statements_reset(0,0,0) IS NOT NULL AS t | 1 | 1
(1 row)
--
-- cleanup
--
DROP ROLE regress_stats_user1;
DROP ROLE regress_stats_user2;
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
t
---
t
(1 row)
|
