2014-08-13 7:19 GMT+02:00 Tom Lane <t...@sss.pgh.pa.us>: > Michael Paquier <michael.paqu...@gmail.com> writes: > > Doing a join on pg_stat_activity and pg_locks is not going to help > > much as you could only get the moment when query has started or its > > state has changed. Have you thought about the addition of a new column > > in pg_locks containing the timestamp of the moment a lock has been > > taken? I am sure that we are concerned about the performance impact > > that extra calls to gettimeofday could have though... > > In theory this could be driven off the same gettimeofday needed to > start the deadlock_timeout timer. Not sure how messy that'd be. >
we use it in out custom patch without problems Pavel > > regards, tom lane >
