Re: PostgreSQL 9.1 : why is this query slow?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

-- 
Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance


[Postgresql General]     [Postgresql PHP]     [PHP Users]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Yosemite]

  Powered by Linux