Brett Henderson <brett(at)bretth(dot)com> writes: > However I don't think it will work in my case. I currently have three > different ways of selecting records, 1. by timestamp range (as in my > initial example), 2. by records in a temp table, and 3. unrestricted. > The unrestricted example isn't an issue because a full table scan is > appropriate in that case. However the temp table one is a different > matter.
In the case of a temp table you have to ANALYZE the temp table after filling it; otherwise the planner is working completely blind as to what is in it. (autovacuum will not do this for you...)