Well, it seems very promising ! I think I'll make some tests and do it your way asap.
Thanks a lot ! Thanks to everybody else, too. Best regards, David -- [EMAIL PROTECTED] - tel: 01.46.47.21.33 - fax: 01.46.47.21.37 ---------------------------(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