From: Josh Berkus <josh@agliodbs.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Cc: Jeff Davis <pgsql@j-davis.com>
Subject: Re: Index usage for tstzrange?
Date: Thu, 21 Mar 2013 17:05:31 -0700
Message-ID: <514BA04B.3040609@agliodbs.com> (raw)
In-Reply-To: <1326.1363838330@sss.pgh.pa.us>
References: <514A5088.6060101@agliodbs.com>
<1326.1363838330@sss.pgh.pa.us>
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-performance>
> Well, no. <@ is not a btree-indexable operator.
Yes, but it's equivalent to ( ( a >= b1 or b1 is null ) and ( a < b2 or
b2 is null ) ), which *is* btree-indexable and can use an index. So it
seems like the kind of optimization we could eventually make.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
--
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
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: josh@agliodbs.com, tgl@sss.pgh.pa.us, pgsql@j-davis.com
Subject: Re: Index usage for tstzrange?
In-Reply-To: <514BA04B.3040609@agliodbs.com>
* 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