46 lines
2.2 KiB
PL/PgSQL
46 lines
2.2 KiB
PL/PgSQL
-- Test streaming of two-phase commits
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SET synchronous_commit = on;
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SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding', false, true);
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CREATE TABLE stream_test(data text);
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-- consume DDL
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SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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-- streaming test with sub-transaction and PREPARE/COMMIT PREPARED
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BEGIN;
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SAVEPOINT s1;
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SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', repeat('a', 50));
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INSERT INTO stream_test SELECT repeat('a', 2000) || g.i FROM generate_series(1, 35) g(i);
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TRUNCATE table stream_test;
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ROLLBACK TO s1;
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INSERT INTO stream_test SELECT repeat('a', 10) || g.i FROM generate_series(1, 20) g(i);
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PREPARE TRANSACTION 'test1';
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-- should show the inserts after a ROLLBACK
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SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
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COMMIT PREPARED 'test1';
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--should show the COMMIT PREPARED and the other changes in the transaction
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SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
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-- streaming test with sub-transaction and PREPARE/COMMIT PREPARED but with
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-- filtered gid. gids with '_nodecode' will not be decoded at prepare time.
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BEGIN;
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SAVEPOINT s1;
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SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', repeat('a', 50));
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INSERT INTO stream_test SELECT repeat('a', 2000) || g.i FROM generate_series(1, 35) g(i);
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TRUNCATE table stream_test;
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ROLLBACK to s1;
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INSERT INTO stream_test SELECT repeat('a', 10) || g.i FROM generate_series(1, 20) g(i);
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PREPARE TRANSACTION 'test1_nodecode';
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-- should NOT show inserts after a ROLLBACK
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SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
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COMMIT PREPARED 'test1_nodecode';
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-- should show the inserts but not show a COMMIT PREPARED but a COMMIT
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SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
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DROP TABLE stream_test;
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SELECT pg_drop_replication_slot('regression_slot');
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