Re: PostgreSQL 9.1 : why is this query slow? - Mailing list pgsql-performance

From Tomas Vondra
Subject Re: PostgreSQL 9.1 : why is this query slow?
Date
Msg-id 4ED3E1C4.2050403@fuzzy.cz
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In response to PostgreSQL 9.1 : why is this query slow?  (Joost Kraaijeveld <J.Kraaijeveld@Askesis.nl>)
List pgsql-performance
On 28.11.2011 17:42, Joost Kraaijeveld wrote:
> - Why does explain say it takes "7876150720 rows"?

Any idea where this number came from? No matter what I do, the nested
loop row estimates are alway very close to the product of the two
estimates (outer rows * inner rows).

Tomas

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