Re: View & Query Performance - Mailing list pgsql-performance

From Richard Huxton
Subject Re: View & Query Performance
Date
Msg-id 416F7E22.6000702@archonet.com
Whole thread Raw
In response to View & Query Performance  ("Igor Maciel Macaubas" <igor@providerst.com.br>)
List pgsql-performance
Igor Maciel Macaubas wrote:
> Hi all,
>
> I'm trying to find smarter ways to dig data from my database, and
> have the following scenario:
>
> table1 -- id -- name . . . . . .
>
> table2 -- id -- number . . . . . .
>
> I want to create a view to give me back just what I want: The id, the
> name and the number. I tought in doing the following: create view
> my_view as select t1.id, t1.name, t2.number from table1 as t1, table2
> as t2 where t1.id = t2.id;
>
> Will this be enough fast ? Are there a faster way to make it work ?!
> This table is mid-big, around 100K registers ..

That's as simple a way as you will find. If you apply further
conditions, e.g.
   SELECT * FROM my_view WHERE id = 123;
then you should see any index on "id" being used.

--
   Richard Huxton
   Archonet Ltd

pgsql-performance by date:

Previous
From: "Alban Medici (NetCentrex)"
Date:
Subject: Re: View & Query Performance
Next
From: "Simon Riggs"
Date:
Subject: Re: [Testperf-general] Re: First set of OSDL Shared Memscalability results, some wierdness ...