Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.1275
diff -u -p -r1.1275 common.inc
--- includes/common.inc	15 Dec 2010 04:21:39 -0000	1.1275
+++ includes/common.inc	15 Dec 2010 04:43:21 -0000
@@ -6690,7 +6690,7 @@ function drupal_write_record($table, &$r
 
   // Go through the schema to determine fields to write.
   foreach ($schema['fields'] as $field => $info) {
-    if ($info['type'] == 'serial') {
+    if (isset($info['type']) && $info['type'] == 'serial') {
       // Skip serial types if we are updating.
       if (!empty($primary_keys)) {
         continue;
@@ -6727,10 +6727,10 @@ function drupal_write_record($table, &$r
     // into an integer column, but PostgreSQL PDO does not. Also type cast NULL
     // when the column does not allow this.
     if (isset($object->$field) || !empty($info['not null'])) {
-      if ($info['type'] == 'int' || $info['type'] == 'serial') {
+      if (isset($info['type']) && ($info['type'] == 'int' || $info['type'] == 'serial')) {
         $fields[$field] = (int) $fields[$field];
       }
-      elseif ($info['type'] == 'float') {
+      elseif (isset($info['type']) && ($info['type'] == 'float')) {
         $fields[$field] = (float) $fields[$field];
       }
       else {