RES: RES: select on 1milion register = 6s

Data_encerramento is a timestamp column


I will try your tip.
Thanks


-----Mensagem original-----
De: pgsql-performance-owner@postgresql.org
[mailto:pgsql-performance-owner@postgresql.org] Em nome de Ragnar
Enviada em: sábado, 28 de julho de 2007 19:36
Para: Bruno Rodrigues Siqueira
Cc: pgsql-performance@postgresql.org
Assunto: Re: RES: [PERFORM] select on 1milion register = 6s

On lau, 2007-07-28 at 17:12 -0300, Bruno Rodrigues Siqueira wrote:

> where
>
> to_char( data_encerramento ,'yyyy-mm')
> between   '2006-12' and  '2007-01'

assuming data_encerramento is a date column, try:
WHERE data_encerramento between   '2006-12-01' and  '2007-01-31'

gnari



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