> Yes, there is some code to catch exceptions like unique constraint violation and no data found. Do you suggest we trying by commenting that part? That is likely it. Comment that out and test. If you still need to handle a unique violation, see if you can instead use the ON CONFLICT clause on the INSERT. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance