Re: Slow query (planner insisting on using 'external merge' sort type)

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On 6/19/2015 10:46 AM, Igor Neyman wrote:

Probably events_confidnce index is not very selective, that's why optimizer prefers seq scan.
I'd try to create an index on (name, eventspy_id, camera_id, type, status).

Also, the recent 9.2 is 9.2.13, you should upgrade.

Regards,
Igor Neyman

Hi Igor,

I already have an index for (name, eventspy_id, camera_id, type, status)... that is the index being used (apparently silently) when I set random_page_cost=1.0.

Thanks,
-Ian


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