File: cursors.sql

package info (click to toggle)
postgresql-18 18~beta3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 155,816 kB
  • sloc: ansic: 993,154; sql: 127,411; perl: 58,874; xml: 30,905; yacc: 21,023; lex: 9,000; makefile: 6,880; sh: 5,353; cpp: 984; python: 710; asm: 40; sed: 3
file content (30 lines) | stat: -rw-r--r-- 849 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
--
-- 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;

-- 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";
SELECT pg_stat_statements_reset() IS NOT NULL AS t;

-- 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;
FETCH 1 IN cursor_stats_2;
CLOSE cursor_stats_1;
CLOSE cursor_stats_2;
COMMIT;

SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
SELECT pg_stat_statements_reset() IS NOT NULL AS t;