mirror of
https://github.com/postgres/postgres.git
synced 2025-05-20 05:13:53 +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
71 lines
1.8 KiB
Plaintext
71 lines
1.8 KiB
Plaintext
--
|
|
-- Cursors
|
|
--
|
|
-- These tests require track_utility to be enabled.
|
|
SET pg_stat_statements.track_utility = TRUE;
|
|
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
|
|
t
|
|
---
|
|
t
|
|
(1 row)
|
|
|
|
-- DECLARE
|
|
-- SELECT is normalized.
|
|
DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT 1;
|
|
CLOSE cursor_stats_1;
|
|
DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT 2;
|
|
CLOSE cursor_stats_1;
|
|
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
calls | rows | query
|
|
-------+------+-------------------------------------------------------
|
|
2 | 0 | CLOSE cursor_stats_1
|
|
2 | 0 | DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT $1
|
|
1 | 1 | SELECT pg_stat_statements_reset() IS NOT NULL AS t
|
|
(3 rows)
|
|
|
|
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
|
|
t
|
|
---
|
|
t
|
|
(1 row)
|
|
|
|
-- FETCH
|
|
BEGIN;
|
|
DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT 2;
|
|
DECLARE cursor_stats_2 CURSOR WITH HOLD FOR SELECT 3;
|
|
FETCH 1 IN cursor_stats_1;
|
|
?column?
|
|
----------
|
|
2
|
|
(1 row)
|
|
|
|
FETCH 1 IN cursor_stats_2;
|
|
?column?
|
|
----------
|
|
3
|
|
(1 row)
|
|
|
|
CLOSE cursor_stats_1;
|
|
CLOSE cursor_stats_2;
|
|
COMMIT;
|
|
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
|
|
calls | rows | query
|
|
-------+------+-------------------------------------------------------
|
|
1 | 0 | BEGIN
|
|
1 | 0 | CLOSE cursor_stats_1
|
|
1 | 0 | CLOSE cursor_stats_2
|
|
1 | 0 | COMMIT
|
|
1 | 0 | DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT $1
|
|
1 | 0 | DECLARE cursor_stats_2 CURSOR WITH HOLD FOR SELECT $1
|
|
1 | 1 | FETCH 1 IN cursor_stats_1
|
|
1 | 1 | FETCH 1 IN cursor_stats_2
|
|
1 | 1 | SELECT pg_stat_statements_reset() IS NOT NULL AS t
|
|
(9 rows)
|
|
|
|
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
|
|
t
|
|
---
|
|
t
|
|
(1 row)
|
|
|