Re: [SQL] Tunning PostgreSQL performance for views on Windows

How big are the underlying tables?

If they are large, are you partitioning?

Since the values only change daily, if the end result is a reasonable
size, have you considered using a CTAS rather than views?

LewisC

--- Ranieri Mazili <ranieri.oliveira@terra.com.br> wrote:

> Hello,
>
> I'm developing a BI and as database it's using postgresql 8.2, how
> data
> are very detailed, I'm creating a view to consolidate the most
> important
> data, but the performance of view is very poor, 1 minute to perform
> more
> or less without where clause.
> I need to know how I can increase the performance, if exist some
> option
> to do cache, because the view will change only one time per day.
> My configuration is default, without modifications after install.
> I'm using windows 2003 server with a dell server with 4GB of
> memory.
>
> To create the view, I created some functions, and then perform they
> on
> one select like:
> select A.field1, B.field2, ... from function_A() A, function_B()
> B...
> Is this the best way to do it?
>
> I appreciate any help.
>
> Thanks
>
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 3: Have you checked our extensive FAQ?
>
>                http://www.postgresql.org/docs/faq
>


-----------------------------------------------------------
Lewis R Cunningham

An Expert's Guide to Oracle Technology
http://blogs.ittoolbox.com/oracle/guide/

EnterpriseDB: The Definitive Reference
http://tinyurl.com/39246e
----------------------------------------------------------