"Jonathan Ellis" <> writes:
> On 4/5/07, Tom Lane <> wrote:
>>> Is this a regression, or a "feature" of 8.2?
>> Hard to say without EXPLAIN ANALYZE output to compare.
> To my eye they are identical other than the speed but perhaps I am
> missing something.
Yeah, it sure is the same plan, and 8.2 seems to be a tad faster right
up to the hash join on user_id. Is user_id a textual datatype? I'm
wondering if the 8.2 installation is using a different locale --- the
speed of simple string comparisons can be horrifically worse in some
locales compared to others.
regards, tom lane