Re: Performance bug in prepared statement binding in 9.2?

On 2014-11-10 10:48:24 -0800, Josh Berkus wrote:
> On 12/31/2013 09:55 AM, Tom Lane wrote:
> > Josh Berkus <josh(at)agliodbs(dot)com> writes:
> >> Tom,
> >>> There's an abbreviated version of this argument in the comments in
> >>> my proposed patch at
> >>> http://www.postgresql.org/message-id/11927.1384199294@sss.pgh.pa.us
> >>> What I'm hoping will happen next is that the complainants will hot-patch
> >>> that and see if it fixes their problems. We can't really determine
> >>> what to do without that information.
> >
> >> Unfortunately, the original reporter of this issue will not be available
> >> for testing for 2-3 weeks, and I haven't been able to devise a synthetic
> >> test which clearly shows the issue.
> >
> > Ping? I've been waiting on committing that patch pending some real-world
> > testing. It'd be nice to resolve this question before we ship 9.3.3,
> > which I'm supposing will be sometime in January ...
>
> Did this patch every make it in? Or did it hang waiting for
> verification?

src/tools/git_changelog is your friend.

Author: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Branch: master Release: REL9_4_BR [fccebe421] 2014-02-25 16:04:06 -0500
Branch: REL9_3_STABLE Release: REL9_3_4 [4162a55c7] 2014-02-25 16:04:09 -0500
Branch: REL9_2_STABLE Release: REL9_2_8 [00283cae1] 2014-02-25 16:04:12 -0500
Branch: REL9_1_STABLE Release: REL9_1_13 [3e2db4c80] 2014-02-25 16:04:16 -0500
Branch: REL9_0_STABLE Release: REL9_0_17 [1e0fb6a2c] 2014-02-25 16:04:20 -0500

Use SnapshotDirty rather than an active snapshot to probe index endpoints.

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
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