On Tue, Nov 15, 2011 at 11:08 AM, Stuart Bishop <stuart@stuartbishop.net> wrote:
> On Fri, Nov 11, 2011 at 10:01 PM, Ruslan Zakirov <ruz@bestpractical.com> wrote:
>> Hello,
[snip]
>> In application such wrong estimation result in seq scan of this table
>> winning leading position in execution plans over other tables and
>> index scans.
>>
>> What can I do to avoid this problem?
>
> Does a partial index help? CREATE UNIQUE INDEX foo_idx ON mytab(id)
> WHERE id = EffectiveId
It doesn't help. Probably reason is the same as for partitions.
>
>
> --
> Stuart Bishop <stuart@stuartbishop.net>
> http://www.stuartbishop.net/
>
--
Best regards, Ruslan.