pg.ddx.io  pgsql-sql@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: ow <oneway_111@yahoo.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: pg 7.4.rc1, Range query performance
Date: Tue, 11 Nov 2003 00:13:03 -0500 (EST)
Message-ID: <200311110513.hAB5D3325077@candle.pha.pa.us> (raw)
In-Reply-To: <27118.1068524013@sss.pgh.pa.us>

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Sorry there isn't a simple solution.
> 
> But there is: make an index with the column order (b,c,a).

Oh, yea, right.  If he puts the columns he is doing a straight equals
comparison first, the 'a' comparison will work fine.  Great.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073



view thread (12+ messages)  latest in thread

Message-ID: <200311110513.hAB5D3325077@candle.pha.pa.us>
Permalink:  ../200311110513.hAB5D3325077@candle.pha.pa.us/
Also on:    postgresql.org/message-id/200311110513.hAB5D3325077@candle.pha.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: pgman@candle.pha.pa.us, tgl@sss.pgh.pa.us, oneway_111@yahoo.com
  Subject: Re: pg 7.4.rc1, Range query performance
  In-Reply-To: <200311110513.hAB5D3325077@candle.pha.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