Index: modules/field/field.install
===================================================================
--- modules/field/field.install	Wed Sep 29 21:46:40 2010
+++ modules/field/field.install	Thu Oct 14 18:30:45 2010
@@ -164,6 +164,7 @@
     ),
   );
   $schema['cache_field'] = drupal_get_schema_unprocessed('system', 'cache');
+  $schema['cache_field']['description'] = 'Cache table for the Field module to store already built field informations.';
 
   return $schema;
 }