Re: Fix for gistchoose
Robert Haas <robertmhaas@gmail.com>
From: Robert Haas <robertmhaas@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Alexander Korotkov <aekorotkov@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2012-08-30T17:39:12Z
Lists: pgsql-hackers
On Thu, Aug 30, 2012 at 1:27 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote: > Robert Haas <robertmhaas@gmail.com> writes: >> On Mon, Aug 20, 2012 at 12:57 PM, Alexander Korotkov >> <aekorotkov@gmail.com> wrote: >>> I found that code of gistchoose doesn't follow it's logic. Idea of >>> gistchoose is that first column penalty is more important than penalty of >>> second column. If we meet same penalty values of first column then we choose >>> minimal penalty value of second column among them. > >> Nice catch. Thanks for the patch, which I have now committed. > > Should we backpatch that? Arguably, yes. Does the patch look sane to you? -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company