On 07/13/2011 12:39 AM, Tom Lane wrote:
> Mario Splivalo<mario.splivalo@megafon.hr> writes:
>> On 07/12/2011 10:04 PM, Tom Lane wrote:
>>> What you need to look into is why the estimated join size is 9400 rows
>>> when the actual join size is zero. Are both tables ANALYZEd? Are you
>>> intentionally selecting rows that have no join partners?
>
>> Yes, both tables have been ANALYZEd. What do you mean, intentilnaly
>> selecting rows taht have no join partners?
>
> I'm wondering why the actual join size is zero. That seems like a
> rather unexpected case for a query like this.
It is true that this particular query returns 0 rows. But it's created
by django, and I can't do much to alter it.
Mario