Index: modules/field/modules/field_sql_storage/field_sql_storage.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/field/modules/field_sql_storage/field_sql_storage.module,v
retrieving revision 1.48
diff -u -p -r1.48 field_sql_storage.module
--- modules/field/modules/field_sql_storage/field_sql_storage.module	26 Jun 2010 02:16:23 -0000	1.48
+++ modules/field/modules/field_sql_storage/field_sql_storage.module	13 Jul 2010 17:50:05 -0000
@@ -207,8 +207,9 @@ function _field_sql_storage_schema($fiel
   // use the IN operator.
   $revision = $current;
   $revision['description'] = "Revision archive storage for {$deleted}field {$field['id']} ({$field['field_name']})";
-  $revision['revision_id']['description'] = 'The entity revision id this data is attached to';
   $revision['primary key'] = array('etid', 'revision_id', 'deleted', 'delta', 'language');
+  $revision['fields']['revision_id']['not null'] = TRUE;
+  $revision['fields']['revision_id']['description'] = 'The entity revision id this data is attached to';
 
   return array(
     _field_sql_storage_tablename($field) => $current,