On Thu, 19 Jun 2003 [EMAIL PROTECTED] wrote:

> Hello All
> 
>  is  in  postgres  any possibility to create bitmap index ? I have big
>  (~12  000  000  records)  table where one field have limited count of
>  values.  Many  queries  use this field in where section. I thing that
>  bitmap index will by better than BTree.
>  How i can optimize select on this table ?

Might a partial index help?

create index tb_dx on tb (field) where field=1

kind of thing?


---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?

               http://archives.postgresql.org

Reply via email to