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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
--
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-- Cursors
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--
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-- These tests require track_utility to be enabled.
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SET pg_stat_statements.track_utility = TRUE;
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SELECT pg_stat_statements_reset() IS NOT NULL AS t;
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t
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---
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t
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(1 row)
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-- DECLARE
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-- SELECT is normalized.
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DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT 1;
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CLOSE cursor_stats_1;
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DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT 2;
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CLOSE cursor_stats_1;
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SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
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calls | rows | query
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-------+------+-------------------------------------------------------
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2 | 0 | CLOSE cursor_stats_1
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2 | 0 | DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT $1
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1 | 1 | SELECT pg_stat_statements_reset() IS NOT NULL AS t
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(3 rows)
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SELECT pg_stat_statements_reset() IS NOT NULL AS t;
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t
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---
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t
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(1 row)
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-- FETCH
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BEGIN;
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DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT 2;
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DECLARE cursor_stats_2 CURSOR WITH HOLD FOR SELECT 3;
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FETCH 1 IN cursor_stats_1;
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?column?
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----------
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2
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(1 row)
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FETCH 1 IN cursor_stats_2;
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?column?
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----------
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3
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(1 row)
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CLOSE cursor_stats_1;
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CLOSE cursor_stats_2;
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COMMIT;
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SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
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calls | rows | query
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-------+------+-------------------------------------------------------
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1 | 0 | BEGIN
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1 | 0 | CLOSE cursor_stats_1
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1 | 0 | CLOSE cursor_stats_2
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1 | 0 | COMMIT
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1 | 0 | DECLARE cursor_stats_1 CURSOR WITH HOLD FOR SELECT $1
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1 | 0 | DECLARE cursor_stats_2 CURSOR WITH HOLD FOR SELECT $1
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1 | 1 | FETCH 1 IN cursor_stats_1
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1 | 1 | FETCH 1 IN cursor_stats_2
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1 | 1 | SELECT pg_stat_statements_reset() IS NOT NULL AS t
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(9 rows)
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SELECT pg_stat_statements_reset() IS NOT NULL AS t;
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t
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---
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t
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(1 row)
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