Re: RFC: built-in historical query time profiling

From: "Ed L(dot)" <pgsql(at)bluepolka(dot)net>
To: Mark Kirkwood <markir(at)paradise(dot)net(dot)nz>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: RFC: built-in historical query time profiling
Date: 2005-03-24 00:50:54
Message-ID: 200503231750.55002.pgsql@bluepolka.net
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On Wednesday March 23 2005 5:14, Mark Kirkwood wrote:
> - decide on a snapshot interval (e.g. 30 seconds)
> - capture pg_stat_activity every interval and save the results
> in a timestamped copy of this view (e.g. add a column
> 'snap_time')

That might serve for some purposes, but log-parsing sounds far
simpler and closer to our objectives. For example, I want to be
able to identify a query that normally takes 10ms but is now
taking 200ms...

Thanks.
Ed

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