Postgres Pro
Downloads
Home   >   mailing lists

Re: Worthwhile optimisation of position()? - Mailing list pgsql-hackers

From Jim C. Nasby
Subject Re: Worthwhile optimisation of position()?
Date
Msg-id 20060324100145.GM90527@pervasive.com
Whole thread Raw
In response to Re: Worthwhile optimisation of position()?  (Christopher Kings-Lynne <chris.kings-lynne@calorieking.com>)
List pgsql-hackers
Tree view 
On Fri, Mar 24, 2006 at 02:58:54PM +0800, Christopher Kings-Lynne wrote:
> >Yeah.  AFAICS the transformation Chris suggested is valid.  I'm really
> >dubious that it's worth expending planner cycles to look for it though.
> >LIKE is something that everybody and his brother uses, but who uses this
> >position()=0 locution?
> 
> One of our junior developers :)  Which is why I noticed it.

Sounds like time to bust out the cluebat. :)
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461

pgsql-hackers by date:

Previous
From: "Jim C. Nasby"
Date:
Subject: Re: Did this work in earlier version of Postgres?
Next
From: Thomas Hallgren
Date:
Subject: Shared memory