Skip site navigation (1) Skip section navigation (2)

Re: XML index support

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Jean-Michel Pouré <jmpoure(at)free(dot)fr>
Subject: Re: XML index support
Date: 2008-06-28 04:08:57
Message-ID: 200806272108.57412.josh@agliodbs.com (view raw or flat)
Thread:
Lists: pgsql-hackers
Jean-Michel,

> As this is an XML related question and XML is quite new, I am posting
> on hackers ML. If any solution is being developped, please inform us.

How is it XML-related?

> We would like to develop a free REST database (real-estate standard)
> based on a PostgreSQL schema. This is a free solution for free data
> also, released under BSD or GPL license. We are charity.
>
> This is supposed to a "killer application", so we need to drive down
> queries to 3ms to 5ms to allow hundreds of simultaneous queries.

Well, anything based on XML data is going to be pretty slow.  There's just no 
way to extra data from an XML field without lots of parsing.  I'd tend to 
think it would be much faster to store the data conventially, and just 
generate XML in response to requests ... either inside or outside PostgreSQL.

Of course, I'd need a lot more detail to make a serious assessment.

Mind you, we'd be thrilled to have you implement a special XML index type.  I 
don't think it's going to solve your problem, though.

-- 
Josh Berkus
PostgreSQL @ Sun
San Francisco

In response to

Responses

pgsql-hackers by date

Next:From: Tom LaneDate: 2008-06-28 04:29:00
Subject: Re: XML index support
Previous:From: Tom LaneDate: 2008-06-28 03:14:36
Subject: Re: the un-vacuumable table

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group