Hi,

The company I'm at is running dbmirror, and we've found a problem with
clean_pending,pl, in that it takes an age to run. I've done some
looking about, and came with up this:

http://www.postgresql.org/docs/7.4/i...e/indexes.html

After reading the comments on that page, I explain'd the query that
clean_pending runs, and found that it is performing a sequential scan on
each of the tables.

Is there a way to make it use the indexes?

Any help would be appreciated.

Thanks

John

---------------------------(end of broadcast)---------------------------
TIP 6: explain analyze is your friend

sql `set enable_seqscan to off;` may help here?

Regards,
g



On 7/29/05, John Abel <jabel@plus.net> wrote:
>
> Hi,
>
> The company I'm at is running dbmirror, and we've found a problem with
> clean_pending,pl, in that it takes an age to run. I've done some
> looking about, and came with up this:
>
> http://www.postgresql.org/docs/7.4/i...e/indexes.html
>
> After reading the comments on that page, I explain'd the query that
> clean_pending runs, and found that it is performing a sequential scan on
> each of the tables.
>
> Is there a way to make it use the indexes?
>
> Any help would be appreciated.
>
> Thanks
>
> John
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
>



--
"Adopting the position that you are smarter than an automatic
optimization algorithm is generally a good way to achieve less
performance, not more" - Tom Lane.