59 lines
1.3 KiB
Plaintext
59 lines
1.3 KiB
Plaintext
Parsed test spec with 3 sessions
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starting permutation: s2rx s2ry s1ry s1wy s1c s2wx s2c s3c
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step s2rx: SELECT balance FROM bank_account WHERE id = 'X';
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balance
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-------
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0
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(1 row)
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step s2ry: SELECT balance FROM bank_account WHERE id = 'Y';
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balance
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-------
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0
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(1 row)
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step s1ry: SELECT balance FROM bank_account WHERE id = 'Y';
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balance
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-------
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0
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(1 row)
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step s1wy: UPDATE bank_account SET balance = 20 WHERE id = 'Y';
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step s1c: COMMIT;
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step s2wx: UPDATE bank_account SET balance = -11 WHERE id = 'X';
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step s2c: COMMIT;
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step s3c: COMMIT;
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starting permutation: s2rx s2ry s1ry s1wy s1c s3r s3c s2wx
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step s2rx: SELECT balance FROM bank_account WHERE id = 'X';
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balance
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-------
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0
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(1 row)
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step s2ry: SELECT balance FROM bank_account WHERE id = 'Y';
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balance
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-------
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0
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(1 row)
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step s1ry: SELECT balance FROM bank_account WHERE id = 'Y';
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balance
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-------
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0
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(1 row)
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step s1wy: UPDATE bank_account SET balance = 20 WHERE id = 'Y';
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step s1c: COMMIT;
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step s3r: SELECT id, balance FROM bank_account WHERE id IN ('X', 'Y') ORDER BY id;
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id|balance
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--+-------
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X | 0
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Y | 20
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(2 rows)
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step s3c: COMMIT;
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step s2wx: UPDATE bank_account SET balance = -11 WHERE id = 'X';
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ERROR: could not serialize access due to read/write dependencies among transactions
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