Parsed test spec with 2 sessions
starting permutation: rxy1 wx1 c1 wy2 rxy2 c2
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c1: COMMIT;
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
step c2: COMMIT;
starting permutation: rxy1 wx1 wy2 c1 rxy2 c2
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step c1: COMMIT;
step rxy2: select * from test_t where val2 = 1;
ERROR: could not serialize access due to read/write dependencies among transactions
step c2: COMMIT;
starting permutation: rxy1 wx1 wy2 rxy2 c1 c2
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c1: COMMIT;
step c2: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: rxy1 wx1 wy2 rxy2 c2 c1
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c2: COMMIT;
step c1: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: rxy1 wy2 wx1 c1 rxy2 c2
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c1: COMMIT;
step rxy2: select * from test_t where val2 = 1;
ERROR: could not serialize access due to read/write dependencies among transactions
step c2: COMMIT;
starting permutation: rxy1 wy2 wx1 rxy2 c1 c2
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c1: COMMIT;
step c2: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: rxy1 wy2 wx1 rxy2 c2 c1
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c2: COMMIT;
step c1: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: rxy1 wy2 rxy2 wx1 c1 c2
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c1: COMMIT;
step c2: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: rxy1 wy2 rxy2 wx1 c2 c1
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c2: COMMIT;
step c1: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: rxy1 wy2 rxy2 c2 wx1 c1
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c2: COMMIT;
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
ERROR: could not serialize access due to read/write dependencies among transactions
step c1: COMMIT;
starting permutation: wy2 rxy1 wx1 c1 rxy2 c2
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c1: COMMIT;
step rxy2: select * from test_t where val2 = 1;
ERROR: could not serialize access due to read/write dependencies among transactions
step c2: COMMIT;
starting permutation: wy2 rxy1 wx1 rxy2 c1 c2
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c1: COMMIT;
step c2: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: wy2 rxy1 wx1 rxy2 c2 c1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c2: COMMIT;
step c1: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: wy2 rxy1 rxy2 wx1 c1 c2
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c1: COMMIT;
step c2: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: wy2 rxy1 rxy2 wx1 c2 c1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c2: COMMIT;
step c1: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: wy2 rxy1 rxy2 c2 wx1 c1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c2: COMMIT;
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
ERROR: could not serialize access due to read/write dependencies among transactions
step c1: COMMIT;
starting permutation: wy2 rxy2 rxy1 wx1 c1 c2
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c1: COMMIT;
step c2: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: wy2 rxy2 rxy1 wx1 c2 c1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c2: COMMIT;
step c1: COMMIT;
ERROR: could not serialize access due to read/write dependencies among transactions
starting permutation: wy2 rxy2 rxy1 c2 wx1 c1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
9 a 1
10 a 1
step c2: COMMIT;
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
ERROR: could not serialize access due to read/write dependencies among transactions
step c1: COMMIT;
starting permutation: wy2 rxy2 c2 rxy1 wx1 c1
step wy2: update test_t set val2 = 2 where val2 = 1 and id = 9;
step rxy2: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step c2: COMMIT;
step rxy1: select * from test_t where val2 = 1;
id val1 val2
0 a 1
1 a 1
2 a 1
3 a 1
4 a 1
5 a 1
6 a 1
7 a 1
8 a 1
10 a 1
step wx1: update test_t set val2 = 2 where val2 = 1 and id = 10;
step c1: COMMIT;