From: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Bug in predicate indexes? |
Date: | 2005-11-22 01:05:07 |
Message-ID: | 20051122010507.GU19279@pervasive.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
On Fri, Nov 18, 2005 at 09:58:24AM -0500, Tom Lane wrote:
> "Joshua D. Drake" <jd(at)commandprompt(dot)com> writes:
> > It appears that predicate indexes won't uses indexes on int8 columns
> > unless they are casted:
>
> This is a known (although perhaps not well documented) limitation of the
> predicate testing logic. You do not need a cast in the query, though,
> only in the index's WHERE condition.
I'm working on a docs patch for this (attached, but un-tested); is
bigint the only datatype this applies to or are there others?
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
Attachment | Content-Type | Size |
---|---|---|
patch | text/plain | 855 bytes |
From | Date | Subject | |
---|---|---|---|
Next Message | Bob Ippolito | 2005-11-22 01:07:26 | Re: PostgreSQL 8.1.0 catalog corruption |
Previous Message | Andrew Dunstan | 2005-11-22 00:50:48 | Re: [HACKERS] Should libedit be preferred to libreadline? |