On 4/6/07, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
"Jonathan Ellis" <jonathan@xxxxxxxxxxxxxx> writes: > On 4/5/07, Tom Lane <tgl@xxxxxxxxxxxxx> 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.
user_id is an int; they are both C locale.