On Aug 23, 2012, at 11:13 AM, "Gauthier, Dave" <dave.gauth...@intel.com> wrote:
> With \timing set on, I run an update statement and it reports.... > > Time: 0.524 ms > > Is that really 0.524 ms? As in 524 nanoseconds? 0.524ms = 524000ns Perhaps you meant microseconds? 0.524ms = 524us If all your data happens to be in RAM cache, simple queries can execute very fast! Unless you have a reason to believe it's wrong, I would trust it to be accurate :-) > > Also, is this wallclock time or some sort of indication of how much cpu it > took? > > Thanks for any answers ! > \timing measures wall time. There's a more detailed discussion of the difference between this and e.g. EXPLAIN ANALYZE here: http://postgresql.1045698.n5.nabble.com/What-does-timing-measure-td4289329.html -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
