Index: openacs-4/packages/survey/www/admin/response-drill-down.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/survey/www/admin/response-drill-down.tcl,v
diff -u -N -r1.4 -r1.4.2.1
--- openacs-4/packages/survey/www/admin/response-drill-down.tcl	6 Nov 2013 07:33:55 -0000	1.4
+++ openacs-4/packages/survey/www/admin/response-drill-down.tcl	29 Jul 2014 11:42:12 -0000	1.4.2.1
@@ -15,8 +15,8 @@
 
 } {
 
-  question_id:integer,notnull
-  choice_id:integer,notnull
+  question_id:naturalnum,notnull
+  choice_id:naturalnum,notnull
   
 }