Updated database schema in readiness for future group management improvements
Updated database schema in readiness for future group management improvements

--- a/Install/index.php
+++ b/Install/index.php
@@ -510,7 +510,9 @@
 'CREATE TABLE `#__Groups` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `Name` blob,
-  PRIMARY KEY (`id`)
+  `Parent` int(11) NOT NULL DEFAULT 0,
+  PRIMARY KEY (`id`),
+  KEY `idx_grp_parents` (`Parent`)
 ) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=latin1;',
 
 'DROP TABLE IF EXISTS `#__Sessions`;',