Siddharth Jain <siddhsql@xxxxxxxxx> writes: > when my application (Node.js) receives a class 40 error: > Class 40 — Transaction Rollback > 40000 transaction_rollback > 40002 transaction_integrity_constraint_violation > 40001 serialization_failure > 40003 statement_completion_unknown > 40P01 deadlock_detectedthen does it mean PG has already rolled back the tx > and therefore I should not attempt to roll it back again? Thanks, No, treat these the same as any other error. regards, tom lane
