Clive Boughton <[email protected]> writes: > When I recently upgraded to PG 18.1 (without any changes to the DB functions > or tables, or indexing) it took 7-10 hours to produce the same result - a > 300-600 times decrease in performance.
This complaint is completely un-actionable for lack of relevant details. There are some hints here about describing performance problems usefully: https://wiki.postgresql.org/wiki/Slow_Query_Questions regards, tom lane
