pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Jignesh Shah <J.K.Shah@Sun.COM>
Cc: pgsql-performance@postgresql.org
Cc: pgsql-hackers@postgresql.org
Subject: Re: Performance of Parser?
Date: Sat, 13 Jan 2007 19:24:28 -0500
Message-ID: <28391.1168734268@sss.pgh.pa.us> (raw)
In-Reply-To: <45A96D70.90506@sun.com>
References: <45A96D70.90506@sun.com>

Jignesh Shah <J.K.Shah@Sun.COM> writes:
> The appserver is basically using bunch of prepared statements that the 
> server should be executing directly without doing the parsing again. 

Better have another look at that theory, because you're clearly spending
a lot of time in parsing (operator resolution to be specific).  I think
your client code is failing to re-use prepared statements the way you
think it is.

			regards, tom lane



view thread (4+ messages)  latest in thread

Message-ID: <28391.1168734268@sss.pgh.pa.us>
Permalink:  ../28391.1168734268@sss.pgh.pa.us/
Also on:    postgresql.org/message-id/28391.1168734268@sss.pgh.pa.us

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: tgl@sss.pgh.pa.us, J.K.Shah@Sun.COM, pgsql-hackers@postgresql.org
  Subject: Re: Performance of Parser?
  In-Reply-To: <28391.1168734268@sss.pgh.pa.us>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox