2011/12/23 Tom Lane <t...@sss.pgh.pa.us>: > Pavel Stehule <pavel.steh...@gmail.com> writes: >> 2011/12/23 Tom Lane <t...@sss.pgh.pa.us>: >>> Tomas Vondra <t...@fuzzy.cz> writes: >>>> The motivation for this patch was that collection timing data often >>>> causes performance issues and in some cases it's not needed. But is this >>>> true for row counts? > >>> Perhaps more to the point, is there a use case for collecting timing >>> data without row counts? I find it hard to visualize a valid reason. > >> yes - a searching of bad prediction > > No, because timing alone proves nothing at all. The machine could just > have been overloaded.
sorry, I didn't understand to question. Using only time is not practical Regards Pavel > > regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
