On Tue, Feb 2, 2010 at 3:51 AM, fida aljounaidi
wrote:
> Hi
>
> I have an sql query which takes 20 seconds to be executed.
>
> this sql query contain more than 870 id under the select where in ()
> condition.
>
> So , it is not a large row result but a big list of conditions to be
> crossed.
>
> I
USE LEFT/JOIN instead of WHERE IN possibly would improve the performance..
On Tue, Feb 2, 2010 at 5:51 PM, fida aljounaidi
wrote:
> Hi
>
> I have an sql query which takes 20 seconds to be executed.
>
> this sql query contain more than 870 id under the select where in ()
> condition.
>
> So , it
And maybe make sure that the id column is indexed, and see what
EXPLAIN says. http://wiki.postgresql.org/wiki/Using_EXPLAIN
--
Ian.
On Tue, Feb 2, 2010 at 10:56 AM, Bret S. Lambert wrote:
> On Tue, Feb 02, 2010 at 11:51:57AM +0100, fida aljounaidi wrote:
>> Hi
>>
>> I have an sql query which ta
On Tue, Feb 02, 2010 at 11:51:57AM +0100, fida aljounaidi wrote:
> Hi
>
> I have an sql query which takes 20 seconds to be executed.
>
> this sql query contain more than 870 id under the select where in ()
> condition.
Add a column to the table which denotes the characteristic that those
870 ids
Hi
I have an sql query which takes 20 seconds to be executed.
this sql query contain more than 870 id under the select where in ()
condition.
So , it is not a large row result but a big list of conditions to be
crossed.
I'm using postgresql 8.4.
Thanks for help
