So I'm running 8.4 and go to this page:http://wiki.postgresql.org/wiki/Lock_Monitoring I have a query that is definitely blocked by another query. I run the first or third queries, the ones that explicitly say that they're for <9.2 and neither produces any output. The third query gives me a list of 182 rows, only a few of which are actually locked in any meaningful ways. Now if I run this query: select relname,pg_locks.* from pg_class,pg_locks where relfilenode=relation and not granted; I get the one row for the update / insert / delete that is getting blocked. I could swear that the original query: select bl.pid as blocked_pid, a.usename as blocked_user, kl.pid as blocking_pid, ka.usename as blocking_user, a.current_query as blocked_statement from pg_catalog.pg_locks bl join pg_catalog.pg_stat_activity a on bl.pid = a.procpid join pg_catalog.pg_locks kl join pg_catalog.pg_stat_activity ka on kl.pid = ka.procpid on bl.transactionid = kl.transactionid and bl.pid != kl.pid where not bl.granted; worked once upon a time, but no longer. If anyone has a newer query that works on <9.2 they could pass along that would be great. -- To understand recursion, one must first understand recursion. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general