pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Tom Lane <tgl@sss.pgh.pa.us>
To: espero7757@gmx.net
Cc: pgsql-performance@postgresql.org
Subject: Re: query planner: automatic rescribe of LIKE to BETWEEN ?
Date: Tue, 22 Aug 2006 17:12:33 -0400
Message-ID: <11769.1156281153@sss.pgh.pa.us> (raw)
In-Reply-To: <200608221922.59734.espero7757@gmx.net>
References: <200608221922.59734.espero7757@gmx.net>

Ulrich Habel <espero7757@gmx.net> writes:
> Anythings speeks against this hack?

Only that it was done years ago.

As Alvaro mentions, if you are using a non-C locale then you need
non-default index opclasses to get it to work.  Non-C locales usually
have index sort orders that don't play nice with this conversion.

			regards, tom lane



view thread (5+ messages)

Message-ID: <11769.1156281153@sss.pgh.pa.us>
Permalink:  ../11769.1156281153@sss.pgh.pa.us/
Also on:    postgresql.org/message-id/11769.1156281153@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, espero7757@gmx.net
  Subject: Re: query planner: automatic rescribe of LIKE to BETWEEN ?
  In-Reply-To: <11769.1156281153@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