pg.ddx.io  pgsql-sql@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Victor Yegorov <viy@pirmabanka.lv>
Cc: PostgreSQL SQL List <pgsql-sql@postgresql.org>
Subject: Re: Optimizing view
Date: Mon, 10 Mar 2003 10:14:27 -0500
Message-ID: <17355.1047309267@sss.pgh.pa.us> (raw)
In-Reply-To: <20030310135231.GA3791@pirmabanka.lv>
References: <20030310135231.GA3791@pirmabanka.lv>

"Victor Yegorov" <viy@pirmabanka.lv> writes:
> I'm running `PostgreSQL 7.2 on i586-pc-linux-gnu, compiled by GCC 2.95.3'
> and have some problems with queries on a view.

Try 7.3.  7.2 won't push down WHERE conditions into a union.

BTW, if the archive table is disjoint from the main table, you'd be
better off using UNION ALL instead of UNION.

			regards, tom lane



view thread (2+ messages)

Message-ID: <17355.1047309267@sss.pgh.pa.us>
Permalink:  ../17355.1047309267@sss.pgh.pa.us/
Also on:    postgresql.org/message-id/17355.1047309267@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-sql@postgresql.org
  Cc: tgl@sss.pgh.pa.us, viy@pirmabanka.lv
  Subject: Re: Optimizing view
  In-Reply-To: <17355.1047309267@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