Index: tw.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/tw/tw.module,v
retrieving revision 1.1.2.52
diff -u -p -r1.1.2.52 tw.module
--- tw.module	8 Feb 2010 23:09:47 -0000	1.1.2.52
+++ tw.module	27 Feb 2010 22:08:38 -0000
@@ -413,11 +413,11 @@ function tw_perform_analysis($tablename,
           if (!$minvalue) {
             $minvalue = '';
           }
-          $colrecord->minstring = $minvalue;
+          $colrecord->minstring = substr($minvalue, 0, 255);
           if (!$maxvalue) {
             $maxvalue = '';
           }
-          $colrecord->maxstring = $maxvalue;
+          $colrecord->maxstring = substr($maxvalue, 0, 255);
           unset($colrecord->minvalue);
           unset($colrecord->maxvalue);
         }