Re: ToDo: log plans of cancelled queries - Mailing list pgsql-hackers

From Pavel Stehule
Subject Re: ToDo: log plans of cancelled queries
Date
Msg-id CAFj8pRBq-A6XUvqHHTdy46Ts6Gp9DAPDwYv6oVTYVh=kF0xSOw@mail.gmail.com
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In response to Re: ToDo: log plans of cancelled queries  (Stephen Frost <sfrost@snowman.net>)
Responses Re: ToDo: log plans of cancelled queries
List pgsql-hackers
2013/1/11 Stephen Frost <sfrost@snowman.net>:
> * Pavel Stehule (pavel.stehule@gmail.com) wrote:
>> My propose is proposed for different dimensions and purpose - for
>> example - we have a limit 20 minutes for almost all queries, and after
>> this limit we killing queries. But we have to know little bit more
>> about these bad queries - and we hope, so execution plan can give this
>> additional info. We have same motivation like people who use
>> auto_explain for slow query - but we can't to wait to query complete.
>
> Why not an option to auto_explain (or whatever) to log an execution plan
> right before actually executing it?  If that was something which could
> be set with a GUC or similar, you could just do that before running
> whatever queries you're interested in capturing the plans for.

for our OLAP usage it is probably possible, but it can be slow for OLTP usage..

Regards

Pavel

>
>         Thanks,
>
>                 Stephen



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