nolan@celery.tssi.com writes:
> Is there a documented problem with optimizing integer key fields
> in 7.3.3?
No. How about providing some more details, like EXPLAIN ANALYZE
output? The given query plan looks reasonable if the planner's
estimates are right ... but since you're complaining, I'd imagine
they are not. (Also, I assume you've done an ANALYZE lately?)
regards, tom lane