On Fri, Apr 11, 2008 at 04:48:03PM -0500, Erik Jones wrote: > On Apr 11, 2008, at 4:23 PM, Stefan Sturm wrote: >> I don''t want to kill them. So how can I find out, what ist locking them? >> Is there a tool, which shows me such Information? > > There is a system catalog view called pg_locks that has an attribute called > pid that you can use to search for entries for those procs. This is priceless: http://www.postgresql.org/docs/8.3/static/explicit-locking.html it explains the lock modes. As for the data collection: http://archives.postgresql.org/pgsql-general/2006-10/msg00841.php this is the best starting place I've been able to find, hopefully there is more and I've not found it. Now what we need is some wise elaboration here: