Re: implement query_start for pg_stat_activity

Your patch has been added to the PostgreSQL unapplied patches list at:

	http://momjian.postgresql.org/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

---------------------------------------------------------------------------


Neil Conway wrote:
> On Wed, 2003-02-19 at 00:27, Neil Conway wrote:
> > This patch implements the TODO item
> > 
> >     - Add start time to pg_stat_activity
> 
> I've attached a revised version of the patch with the following changes:
> 
> - use longer function names, as suggested by Tom
> 
> - (unrelated) replace some instances where snprintf() was called with a
> constant buffer size with sizeof
> 
> - documentation improvements
> 
> - update regression tests
> 
> - change the method of finding the current date & time -- it's still an
> ugly hack, although arguably less so. Now we do:
> 
> AbsoluteTime sec;
> int usec;
> 
> sec = GetCurrentAbsoluteTimeUsec(&usec);
> 
> /* when displaying the time */
> Timestamp result;
> 
> #ifdef HAVE_INT64_TIMESTAMP
> result = (((sec - ((date2j(2000, 1, 1) - date2j(1970, 1, 1)) * 86400))
> 		   * INT64CONST(1000000)) + usec);
> #else
> result = (sec + (usec * 1.0e-6) - ((date2j(2000, 1, 1) -
> 				date2j(1970, 1, 1)) * 86400));
> #endif
> 
> which is the same method now() uses internally.
> 
> Cheers,
> 
> Neil
> -- 
> Neil Conway  || PGP Key ID: DB3C29FC
> 
> 

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