Re: implement query_start for pg_stat_activity

Also, TODO item now marked as done!

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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 <neilc(at)samurai(dot)com> || PGP Key ID: DB3C29FC
>
>

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