Robert Haas <robertmh...@gmail.com> writes: > On Fri, Feb 17, 2012 at 3:48 AM, Heikki Linnakangas > <heikki.linnakan...@enterprisedb.com> wrote: >> Recompiling is expensive, but if you cache the results for the session, it >> would probably be acceptable.
> What if you did this ONCE and wrote the results to a file someplace? That's still a cache, you've just defaulted on your obligation to think about what conditions require the cache to be flushed. (In the case at hand, the trigger for a cache rebuild would probably need to be a glibc package update, which we have no way of knowing about.) Before going much further with this, we should probably do some timings of 64K calls of iswupper and friends, just to see how bad a dumb implementation will be. regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers