Luca Ferrari wrote: > Any other idea? None here. Maybe try attaching a debugger, setting a breakpoint on AssignTransactionId, and grab backtraces when it is hit. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general