"Jimmy Choi" <yhjchoi(at)gmail(dot)com> writes:
> A simple query is executing much slower than expected. When looking at
> the query plan, I see a bitmap index scan on a partial index that does
> not have any associated index condition. How could that happen?
Easily --- it thinks that the partial index predicate is useful in
> "vacuum analyze" doesn't solve the problem. I'm running 8.1.5.
choose_bitmap_and was rewritten (again) in 8.1.9. Try a newer
regards, tom lane
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