On Wed, Dec 31, 2008 at 11:01 AM, Alvaro Herrera
<alvhe...@commandprompt.com> wrote:
>> The point of a prepared statement IMHO is to do the planning only once.
>> There's necessarily a tradeoff between that and having a plan that's
>> perfectly adapted to specific parameter values.
>
> I think it has been shown enough times that the performance drop caused
> by a worse plan can be orders of magnitudes worse than what's gained by
> producing the plan only once.  It does not seem a bad idea to provide a
> way to carry out only the parse phase, and postpone planning until the
> parameters have been received.

+1.

...Robert

-- 
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance

Reply via email to