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143 lines
5.2 KiB
143 lines
5.2 KiB
SET synchronous_commit = on;
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SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
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?column?
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----------
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init
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(1 row)
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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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data
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------
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(0 rows)
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-- streaming test with sub-transaction
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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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?column?
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----------
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msg5
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(1 row)
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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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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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data
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----------------------------------------------------------
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opening a streamed block for transaction
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streaming message: transactional: 1 prefix: test, sz: 50
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closing a streamed block for transaction
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aborting streamed (sub)transaction
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opening a streamed block for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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closing a streamed block for transaction
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committing streamed transaction
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(27 rows)
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-- streaming test for toast changes
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ALTER TABLE stream_test ALTER COLUMN data set storage external;
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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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data
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------
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(0 rows)
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INSERT INTO stream_test SELECT repeat('a', 6000) || g.i FROM generate_series(1, 10) g(i);
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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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data
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------------------------------------------
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opening a streamed block for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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closing a streamed block for transaction
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committing streamed transaction
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(13 rows)
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-- streaming test for toast with multi-insert
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\COPY stream_test FROM STDIN
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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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data
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------------------------------------------
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opening a streamed block for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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streaming change for transaction
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closing a streamed block for transaction
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opening a streamed block for transaction
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streaming change for transaction
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closing a streamed block for transaction
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committing streamed transaction
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(17 rows)
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/*
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* Test concurrent abort with toast data. When streaming the second insertion, we
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* detect that the subtransaction was aborted, and reset the transaction while having
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* the TOAST changes in memory, resulting in deallocating both decoded changes and
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* TOAST reconstruction data. Memory usage counters must be updated correctly.
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*
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* Set debug_logical_replication_streaming to 'immediate' to disable the transaction
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* status check happening before streaming the second insertion, so we can detect a
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* concurrent abort while streaming.
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*/
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SET debug_logical_replication_streaming = immediate;
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BEGIN;
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INSERT INTO stream_test SELECT repeat(string_agg(to_char(g.i, 'FM0000'), ''), 50) FROM generate_series(1, 500) g(i);
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ALTER TABLE stream_test ADD COLUMN i INT;
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SAVEPOINT s1;
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INSERT INTO stream_test(data, i) SELECT repeat(string_agg(to_char(g.i, 'FM0000'), ''), 50), 1 FROM generate_series(1, 500) g(i);
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ROLLBACK TO s1;
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COMMIT;
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SELECT count(*) FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
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count
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-------
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5
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(1 row)
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RESET debug_logical_replication_streaming;
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DROP TABLE stream_test;
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SELECT pg_drop_replication_slot('regression_slot');
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pg_drop_replication_slot
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--------------------------
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(1 row)
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