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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
-- Tests with extended query protocol
SET pg_stat_statements.track_utility = FALSE;
-- This test checks that an execute message sets a query ID.
SELECT query_id IS NOT NULL AS query_id_set
FROM pg_stat_activity WHERE pid = pg_backend_pid() \bind \g
query_id_set
--------------
t
(1 row)
-- Various parameter numbering patterns
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
t
---
t
(1 row)
-- Unique query IDs with parameter numbers switched.
SELECT WHERE ($1::int, 7) IN ((8, $2::int), ($3::int, 9)) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE ($2::int, 10) IN ((11, $3::int), ($1::int, 12)) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE $1::int IN ($2::int, $3::int) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE $2::int IN ($3::int, $1::int) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE $3::int IN ($1::int, $2::int) \bind '1' '2' '3' \g
--
(0 rows)
-- Two groups of two queries with the same query ID.
SELECT WHERE '1'::int IN ($1::int, '2'::int) \bind '1' \g
--
(1 row)
SELECT WHERE '4'::int IN ($1::int, '5'::int) \bind '2' \g
--
(0 rows)
SELECT WHERE $2::int IN ($1::int, '1'::int) \bind '1' '2' \g
--
(0 rows)
SELECT WHERE $2::int IN ($1::int, '2'::int) \bind '3' '4' \g
--
(0 rows)
SELECT query, calls FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls
--------------------------------------------------------------+-------
SELECT WHERE $1::int IN ($2::int, $3::int) | 1
SELECT WHERE $2::int IN ($1::int, $3::int) | 2
SELECT WHERE $2::int IN ($1::int, $3::int) | 2
SELECT WHERE $2::int IN ($3::int, $1::int) | 1
SELECT WHERE $3::int IN ($1::int, $2::int) | 1
SELECT WHERE ($1::int, $4) IN (($5, $2::int), ($3::int, $6)) | 1
SELECT WHERE ($2::int, $4) IN (($5, $3::int), ($1::int, $6)) | 1
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1
(8 rows)
|
