Re: five-key syscaches
Yeb Havinga <yebhavinga@gmail.com>
From: Yeb Havinga <yebhavinga@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Joachim Wieland <joe@mcknight.de>, pgsql-hackers@postgresql.org
Date: 2010-07-14T14:56:04Z
Lists: pgsql-hackers
Robert Haas wrote: > On Wed, Jul 14, 2010 at 7:27 AM, Yeb Havinga <yebhavinga@gmail.com> wrote: > >> Attach is a new patch with all things described above addressed. >> > > Thanks! > > I think we should probably hold off applying this until some of the > other KNNGIST work is ready, or we have some other concrete need for > 5-key syscaches. > Any thoughts about the << 16 and >> 16 bit shifting on the 5th hash key computation? I blithely copied it from the 3rd key. -- Yeb