On Fri, Jun 24, 2016 at 4:13 AM, Dusan Milanov <dusanmila...@gmail.com> wrote: > Hi, > > A question about transactions: does postgres report serialization errors > before a transaction is committed? Obviously, it does on commit, but how > about previous statements? Can there be an ERRCODE_T_R_SERIALIZATION_FAILURE > error as a response to anything else but the commit?
Yes. See src/test/isolation/expected/project-manager.out, which shows how to reach this error: postgres=# UPDATE person SET is_project_manager = false WHERE person_id = 1; ERROR: could not serialize access due to read/write dependencies among transactions DETAIL: Reason code: Canceled on identification as a pivot, during write. HINT: The transaction might succeed if retried. -- Thomas Munro http://www.enterprisedb.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
