Hello; Briefly, we've been fighting an "old idle transaction" problem on our Pg 8.0.3 Solaris 2.9 production system for a long time. This is due to some quirks in our app server code (to be fixed ASAP <groan>). Hourly we run a script that SIGTERMs all backends reported as being in idle transaction state for 6 hours or better. Many, many runs of this procedure during past several weeks; no problem. Suddently, we have a condition where the pg_stat_activity view is reporting several such backends and there is no such PID in the system any more. These were either successfully terminated by an earlier script run, died off abnormally or even by normal client disconnect. (Unknown). At any rate; I'm wondering what possible causes might be responsible for pg_stat_activity's underlying functions to lose track of the valid process list? Great big thanks! -- ------------------------------------------------------------------------------- Jerry Sievers 305 854-3001 (home) WWW ECommerce Consultant 305 321-1144 (mobile http://www.JerrySievers.com/