Re: hash index improving v3
Bruce Momjian <[email protected]> Wed, 24 Sep 2008 12:04:22 -0400 (EDT)
| Newsgroups | gmane.comp.db.postgresql.devel.patches |
|---|---|
| Message-ID | <[email protected]> |
Can we consider this hash thread closed/completed? --------------------------------------------------------------------------- Tom Lane wrote: > Simon Riggs <[email protected]> writes: > > Thinks: Why not just sort all of the time and skip the debate entirely? > > The sort is demonstrably a loser for smaller indexes. Admittedly, > if the index is small then the sort can't cost all that much, but if > the (correct) threshold is some large fraction of shared_buffers then > it could still take awhile on installations with lots-o-buffers. > > The other side of that coin is that it's not clear this is really worth > arguing about, much less exposing a separate parameter for. > > regards, tom lane > > -- > Sent via pgsql-patches mailing list ([email protected]) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-patches -- Bruce Momjian <[email protected]> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. + -- Sent via pgsql-patches mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-patches