blob: be1f84d51c2fee032ee94065aa4244956562939c (
plain)
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
|
Parsed test spec with 3 sessions
starting permutation: s1a s2a s3a s1b s2b s3b
step s1a: SELECT * FROM queue ORDER BY id FOR UPDATE LIMIT 1;
id|data|status
--+----+------
1|foo |NEW
(1 row)
step s2a: SELECT * FROM queue ORDER BY id FOR UPDATE LIMIT 1; <waiting ...>
step s3a: SELECT * FROM queue ORDER BY id FOR UPDATE SKIP LOCKED LIMIT 1;
id|data|status
--+----+------
2|bar |NEW
(1 row)
step s1b: COMMIT;
step s2a: <... completed>
id|data|status
--+----+------
1|foo |NEW
(1 row)
step s2b: COMMIT;
step s3b: COMMIT;
|
