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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