Re: Getting rid of extra gettimeofday() calls

On Mon, Jun 19, 2006 at 11:17:48AM -0400, Tom Lane wrote:
> instead?  The effect would be that for an idle backend,
> pg_stat_activity.query_start would reflect the start time of its latest
> query instead of the time at which it finished the query.  I can see
> some use for the current behavior but I don't really think it's worth
> the overhead of a gettimeofday() call.

Perhaps make it a compile-time option... I suspect that there's people
making use of that info in their monitoring tools. Though, those people
are probably also likely to have log_duration=true, so maybe the same
trick of gettimeofday() once at statement end and copying it as needed
would work.
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461