Re: Bug? 8.0 does not use partial index - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Bug? 8.0 does not use partial index
Date
Msg-id 15853.1105653821@sss.pgh.pa.us
Whole thread Raw
In response to Re: Bug? 8.0 does not use partial index  (Palle Girgensohn <girgen@pingpong.net>)
Responses Re: Bug? 8.0 does not use partial index
List pgsql-hackers
Palle Girgensohn <girgen@pingpong.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


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