If you send a transaction as a single query to the backend, it ignores the commit if the transaction is aborted:
Example: testdb=# CREATE TEMP TABLE test(test INT PRIMARY KEY, CONSTRAINT testconstraint CHECK (test > 2) ); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'test_pkey' for table 'test' CREATE TABLE testdb=# START TRANSACTION\; INSERT INTO test VALUES(1)\; COMMIT\; ; ERROR: ExecInsert: rejected due to CHECK constraint "testconstraint" on "test" testdb=# SELECT * FROM test; ERROR: current transaction is aborted, queries ignored until end of transaction block (Tested with PostgreSQL 7.3.4) -- Brage Førland ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]