From: Tom Lane <tgl@sss.pgh.pa.us>
To: Craig Ringer <ringerc@ringerc.id.au>
Cc: Royce Ausburn <royce.ml@inomial.com>
Cc: pgsql-performance <pgsql-performance@postgresql.org>
Subject: Re: Prepared statements and suboptimal plans
Date: Tue, 20 Sep 2011 20:36:35 -0400
Message-ID: <9289.1316565395@sss.pgh.pa.us> (raw)
In-Reply-To: <4E792417.5080205@ringerc.id.au>
References: <C38A9B65-3AEB-4AFC-AE49-8D61B2DEDF64@inomial.com>
<4E792417.5080205@ringerc.id.au>
Craig Ringer <ringerc@ringerc.id.au> writes:
> On 21/09/2011 7:27 AM, Royce Ausburn wrote:
>> We've been worst hit by this query on an 8.3 site. Another site is
>> running 8.4. Have there been improvements in this area recently?
>> Upgrading to 9.0 might be viable for us.
> Tom just mentioned that 9.1 will be able to re-plan parameterized
> prepared statements, so this issue will go away.
9.2, sorry, not 9.1. We could use some motivated people testing that
aspect of GIT HEAD, though, since I doubt the policy for when to re-plan
is quite ideal yet.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, ringerc@ringerc.id.au, royce.ml@inomial.com
Subject: Re: Prepared statements and suboptimal plans
In-Reply-To: <9289.1316565395@sss.pgh.pa.us>
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