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Diffstat (limited to '')
-rw-r--r-- | contrib/test_decoding/sql/decoding_in_xact.sql | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/contrib/test_decoding/sql/decoding_in_xact.sql b/contrib/test_decoding/sql/decoding_in_xact.sql new file mode 100644 index 0000000..108782d --- /dev/null +++ b/contrib/test_decoding/sql/decoding_in_xact.sql @@ -0,0 +1,41 @@ +-- predictability +SET synchronous_commit = on; + +-- fail because we're creating a slot while in an xact with xid +BEGIN; +SELECT pg_current_xact_id() = '0'; +SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding'); +ROLLBACK; + +-- fail because we're creating a slot while in a subxact whose topxact has an xid +BEGIN; +SELECT pg_current_xact_id() = '0'; +SAVEPOINT barf; +SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding'); +ROLLBACK TO SAVEPOINT barf; +ROLLBACK; + +-- succeed, outside tx. +SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding'); +SELECT 'stop' FROM pg_drop_replication_slot('regression_slot'); + +-- succeed, in tx without xid. +BEGIN; +SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding'); +COMMIT; + +CREATE TABLE nobarf(id serial primary key, data text); +INSERT INTO nobarf(data) VALUES('1'); + +-- decoding works in transaction with xid +BEGIN; +SELECT pg_current_xact_id() = '0'; +-- don't show yet, haven't committed +INSERT INTO nobarf(data) VALUES('2'); +SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); +COMMIT; + +INSERT INTO nobarf(data) VALUES('3'); +SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1'); + +SELECT 'stop' FROM pg_drop_replication_slot('regression_slot'); |