Merlin Moncure <mmonc...@gmail.com> writes: > Attached is an incomplete patch disabling hint bits based on compile > switch. ... > So far, at least doing pgbench runs and another test designed to > exercise clog lookups, the performance loss of always doing full > lookup hasn't materialized.
The standard pgbench test would be just about 100% useless for stressing this, because its net database activity is only about one row touched/updated per query. You need a test case that hits lots of rows per query, else you're just measuring parse+plan+network overhead. regards, tom lane -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers