=?iso-8859-2?Q?Egy=FCd_Csaba?= <[EMAIL PROTECTED]> writes: > The critical tables are vacuum analyzed in every hour.
Evidently that's not often enough. Or it could be that your FSM settings aren't large enough? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match