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Parsed test spec with 2 sessions
starting permutation: s1a s2a s2b s1b s2c
step s1a: SELECT * FROM foo FOR SHARE NOWAIT;
id|data
--+----
1|x
(1 row)
step s2a: SELECT * FROM foo FOR SHARE NOWAIT;
id|data
--+----
1|x
(1 row)
step s2b: SELECT * FROM foo FOR UPDATE NOWAIT;
ERROR: could not obtain lock on row in relation "foo"
step s1b: COMMIT;
step s2c: COMMIT;
starting permutation: s2a s1a s2b s1b s2c
step s2a: SELECT * FROM foo FOR SHARE NOWAIT;
id|data
--+----
1|x
(1 row)
step s1a: SELECT * FROM foo FOR SHARE NOWAIT;
id|data
--+----
1|x
(1 row)
step s2b: SELECT * FROM foo FOR UPDATE NOWAIT;
ERROR: could not obtain lock on row in relation "foo"
step s1b: COMMIT;
step s2c: COMMIT;
starting permutation: s2a s2b s1a s1b s2c
step s2a: SELECT * FROM foo FOR SHARE NOWAIT;
id|data
--+----
1|x
(1 row)
step s2b: SELECT * FROM foo FOR UPDATE NOWAIT;
id|data
--+----
1|x
(1 row)
step s1a: SELECT * FROM foo FOR SHARE NOWAIT;
ERROR: could not obtain lock on row in relation "foo"
step s1b: COMMIT;
step s2c: COMMIT;
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