Hi What is the use of PM_RESULT_DATASUBSTITION metadata? In queryExtended.php in line 82 (approximately) there is one loop that check PM_RESULT_DATASUBSTITION metadata. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.maptools.org/pipermail/chameleon/attachments/20120501/a1a2232b/attachment.htm