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Re: Avoiding bad prepared-statement plans.

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Alex Hunsaker <badalex(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Jeroen Vermeulen <jtv(at)xs4all(dot)nl>, Greg Stark <gsstark(at)mit(dot)edu>, Bart Samwel <bart(at)samwel(dot)tk>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Avoiding bad prepared-statement plans.
Date: 2010-02-26 16:50:37
Message-ID: 603c8f071002260850r19c2c9e4gcea15621b653ae92@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Fri, Feb 26, 2010 at 1:29 AM, Alex Hunsaker <badalex(at)gmail(dot)com> wrote:
> Prepared plans + exec plan (new guc/ protocol thing):
>  Use: not quite sure
>  Problems: slow because it would replan every time
>  Solutions: use a prepared plan with the appropriate things not
> parametrized...?
>
> [ aka we already have this, its called dont use a prepared statement ]

The point is sometimes you'd like to replan every time, but not
reparse every time.  There's no way to do that ATM.

...Robert

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