Index: branches/features/grailsUpgrade/grails-app/domain/Image.groovy
===================================================================
--- branches/features/grailsUpgrade/grails-app/domain/Image.groovy	(revision 875)
+++ branches/features/grailsUpgrade/grails-app/domain/Image.groovy	(revision 880)
@@ -13,6 +13,4 @@
 
     static mapping = {
-        picture index: 'images_index', unique: true
-        size index: 'images_index', unique: true
         data type: 'binary'
     }
@@ -20,4 +18,5 @@
     static constraints = {
         data(maxSize: MAX_SIZE)
+        size(unique:'picture')
     }