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|
Parsed test spec with 2 sessions
starting permutation: merge1 c1 select2 c2
step merge1:
MERGE INTO target t
USING (SELECT 1 as key, 'merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step c1: COMMIT;
step select2: SELECT * FROM target;
key|val
---+------------------------
2|setup1 updated by merge1
(1 row)
step c2: COMMIT;
starting permutation: merge1 c1 merge2a select2 c2
step merge1:
MERGE INTO target t
USING (SELECT 1 as key, 'merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step c1: COMMIT;
step merge2a:
MERGE INTO target t
USING (SELECT 1 as key, 'merge2a' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step select2: SELECT * FROM target;
key|val
---+------------------------
2|setup1 updated by merge1
1|merge2a
(2 rows)
step c2: COMMIT;
starting permutation: pa_merge1 c1 pa_merge2c_dup a2
step pa_merge1:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set val = t.val || ' updated by ' || s.val;
step c1: COMMIT;
step pa_merge2c_dup:
MERGE INTO pa_target t
USING (VALUES (1), (1)) v(a)
ON t.key = v.a
WHEN MATCHED THEN
UPDATE set val = t.val || ' updated by pa_merge2c_dup'; -- should fail
ERROR: MERGE command cannot affect row a second time
step a2: ABORT;
starting permutation: merge1 merge2a c1 select2 c2
step merge1:
MERGE INTO target t
USING (SELECT 1 as key, 'merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step merge2a:
MERGE INTO target t
USING (SELECT 1 as key, 'merge2a' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step c1: COMMIT;
step merge2a: <... completed>
step select2: SELECT * FROM target;
key|val
---+------------------------
2|setup1 updated by merge1
1|merge2a
(2 rows)
step c2: COMMIT;
starting permutation: merge1 merge2a a1 select2 c2
step merge1:
MERGE INTO target t
USING (SELECT 1 as key, 'merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step merge2a:
MERGE INTO target t
USING (SELECT 1 as key, 'merge2a' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step a1: ABORT;
step merge2a: <... completed>
step select2: SELECT * FROM target;
key|val
---+-------------------------
2|setup1 updated by merge2a
(1 row)
step c2: COMMIT;
starting permutation: merge1 merge2b c1 select2 c2
step merge1:
MERGE INTO target t
USING (SELECT 1 as key, 'merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step merge2b:
MERGE INTO target t
USING (SELECT 1 as key, 'merge2b' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED AND t.key < 2 THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step c1: COMMIT;
step merge2b: <... completed>
step select2: SELECT * FROM target;
key|val
---+------------------------
2|setup1 updated by merge1
1|merge2b
(2 rows)
step c2: COMMIT;
starting permutation: merge1 merge2c c1 select2 c2
step merge1:
MERGE INTO target t
USING (SELECT 1 as key, 'merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step merge2c:
MERGE INTO target t
USING (SELECT 1 as key, 'merge2c' as val) s
ON s.key = t.key AND t.key < 2
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step c1: COMMIT;
step merge2c: <... completed>
step select2: SELECT * FROM target;
key|val
---+------------------------
2|setup1 updated by merge1
1|merge2c
(2 rows)
step c2: COMMIT;
starting permutation: pa_merge1 pa_merge2a c1 pa_select2 c2
step pa_merge1:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set val = t.val || ' updated by ' || s.val;
step pa_merge2a:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2a' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step c1: COMMIT;
step pa_merge2a: <... completed>
step pa_select2: SELECT * FROM pa_target;
key|val
---+--------------------------------------------------
2|initial
2|initial updated by pa_merge1 updated by pa_merge2a
(2 rows)
step c2: COMMIT;
starting permutation: pa_merge2 pa_merge2a c1 pa_select2 c2
step pa_merge2:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step pa_merge2a:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2a' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step c1: COMMIT;
step pa_merge2a: <... completed>
ERROR: tuple to be locked was already moved to another partition due to concurrent update
step pa_select2: SELECT * FROM pa_target;
ERROR: current transaction is aborted, commands ignored until end of transaction block
step c2: COMMIT;
starting permutation: pa_merge2 c1 pa_merge2a pa_select2 c2
step pa_merge2:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step c1: COMMIT;
step pa_merge2a:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2a' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
step pa_select2: SELECT * FROM pa_target;
key|val
---+----------------------------
1|pa_merge2a
2|initial
2|initial updated by pa_merge2
(3 rows)
step c2: COMMIT;
starting permutation: pa_merge3 pa_merge2b_when c1 pa_select2 c2
step pa_merge3:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set val = 'prefix ' || t.val;
step pa_merge2b_when:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2b_when' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED AND t.val like 'initial%' THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step c1: COMMIT;
step pa_merge2b_when: <... completed>
step pa_select2: SELECT * FROM pa_target;
key|val
---+--------------
1|prefix initial
2|initial
(2 rows)
step c2: COMMIT;
starting permutation: pa_merge1 pa_merge2b_when c1 pa_select2 c2
step pa_merge1:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set val = t.val || ' updated by ' || s.val;
step pa_merge2b_when:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge2b_when' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED AND t.val like 'initial%' THEN
UPDATE set key = t.key + 1, val = t.val || ' updated by ' || s.val;
<waiting ...>
step c1: COMMIT;
step pa_merge2b_when: <... completed>
step pa_select2: SELECT * FROM pa_target;
key|val
---+-------------------------------------------------------
2|initial
2|initial updated by pa_merge1 updated by pa_merge2b_when
(2 rows)
step c2: COMMIT;
starting permutation: pa_merge1 pa_merge2c_dup c1 a2
step pa_merge1:
MERGE INTO pa_target t
USING (SELECT 1 as key, 'pa_merge1' as val) s
ON s.key = t.key
WHEN NOT MATCHED THEN
INSERT VALUES (s.key, s.val)
WHEN MATCHED THEN
UPDATE set val = t.val || ' updated by ' || s.val;
step pa_merge2c_dup:
MERGE INTO pa_target t
USING (VALUES (1), (1)) v(a)
ON t.key = v.a
WHEN MATCHED THEN
UPDATE set val = t.val || ' updated by pa_merge2c_dup'; -- should fail
<waiting ...>
step c1: COMMIT;
step pa_merge2c_dup: <... completed>
ERROR: MERGE command cannot affect row a second time
step a2: ABORT;
|
