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68 lines
2.7 KiB
68 lines
2.7 KiB
-- predictability
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SET synchronous_commit = on;
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-- fail because we're creating a slot while in an xact with xid
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BEGIN;
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SELECT pg_current_xact_id() = '0';
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SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
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ROLLBACK;
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-- fail because we're creating a slot while in a subxact whose topxact has an xid
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BEGIN;
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SELECT pg_current_xact_id() = '0';
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SAVEPOINT barf;
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SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
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ROLLBACK TO SAVEPOINT barf;
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ROLLBACK;
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-- succeed, outside tx.
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SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
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SELECT 'stop' FROM pg_drop_replication_slot('regression_slot');
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-- succeed, in tx without xid.
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BEGIN;
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SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
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COMMIT;
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CREATE TABLE nobarf(id serial primary key, data text);
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INSERT INTO nobarf(data) VALUES('1');
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-- decoding works in transaction with xid
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BEGIN;
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SELECT pg_current_xact_id() = '0';
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-- don't show yet, haven't committed
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INSERT INTO nobarf(data) VALUES('2');
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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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COMMIT;
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INSERT INTO nobarf(data) VALUES('3');
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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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-- Decoding works in transaction that issues DDL
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--
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-- We had issues handling relcache invalidations with these, see
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-- https://www.postgresql.org/message-id/e56be7d9-14b1-664d-0bfc-00ce9772721c@gmail.com
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CREATE TABLE tbl_created_outside_xact(id SERIAL PRIMARY KEY);
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BEGIN;
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-- TRUNCATE changes the relfilenode and sends relcache invalidation
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TRUNCATE tbl_created_outside_xact;
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INSERT INTO tbl_created_outside_xact(id) VALUES('1');
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-- don't show yet, haven't committed
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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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COMMIT;
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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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SET debug_logical_replication_streaming = immediate;
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BEGIN;
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CREATE TABLE tbl_created_in_xact(id SERIAL PRIMARY KEY);
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INSERT INTO tbl_created_in_xact VALUES (1);
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CHECKPOINT; -- Force WAL flush, so that the above changes will be streamed
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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;
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RESET debug_logical_replication_streaming;
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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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SELECT 'stop' FROM pg_drop_replication_slot('regression_slot');
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