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master
contrib/test_decoding/sql/xact.sql
33 строки
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Tom Lane
Don't propagate a null subtransaction snapshot up to parent transaction.
07 авг 2016, 20:15
07 авг 2016, 20:15
bcbecbc
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-- predictability SET synchronous_commit = on; SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding'); CREATE TABLE xact_test(data text); INSERT INTO xact_test VALUES ('before-test'); -- bug #13844, xids in non-decoded records need to be inspected BEGIN; -- perform operation in xact that creates and logs xid, but isn't decoded SELECT * FROM xact_test FOR UPDATE; SAVEPOINT foo; -- and now actually insert in subxact, xid is expected to be known INSERT INTO xact_test VALUES ('after-assignment'); COMMIT; -- and now show those changes SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); -- bug #14279, do not propagate null snapshot from subtransaction BEGIN; -- first insert INSERT INTO xact_test VALUES ('main-txn'); SAVEPOINT foo; -- now perform operation in subxact that creates and logs xid, but isn't decoded SELECT 1 FROM xact_test FOR UPDATE LIMIT 1; COMMIT; -- and now show those changes SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); DROP TABLE xact_test; SELECT pg_drop_replication_slot('regression_slot');