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;
