Re: ToDo: log plans of cancelled queries
Pavel Stehule <pavel.stehule@gmail.com>
From: Pavel Stehule <pavel.stehule@gmail.com>
To: Stephen Frost <sfrost@snowman.net>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2013-01-11T15:51:32Z
Lists: 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