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

Re: Bug? 8.0 does not use partial index

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Palle Girgensohn <girgen(at)pingpong(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Bug? 8.0 does not use partial index
Date: 2005-01-13 22:03:41
Message-ID: 15853.1105653821@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Palle Girgensohn <girgen(at)pingpong(dot)net> writes:
> How do you mean they look far off?

>  Seq Scan on group_data  (cost=0.00..47544.43 rows=114164 width=43) (actual 
> time=114.015..1334.479 rows=4 loops=1)

114164 estimated vs 4 actual rows is pretty far off.  Perhaps something
skewed about the data distribution?

> If you want, I can send you the data.

If it's not too huge, sure, send it to me off-list.

			regards, tom lane

In response to

Responses

pgsql-hackers by date

Next:From: John HansenDate: 2005-01-13 22:04:25
Subject: Re: Bug? 8.0 does not use partial index
Previous:From: Pavel StehuleDate: 2005-01-13 22:02:29
Subject: Re: Slow PL/pgSQL 8.0.RC5 (7.4.6. 3times faster)

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