Pointing the Views handler for Node Body at another field handler
As the database field you are using is external to the node_revisions table, you should probably declare a relationship, in the same way done from Views for the uid field.

// uid field
$data['node_revisions']['uid'] = array(
  'title' =&gt; t('User'),
  'help' =&gt; t('Relate a node revision to the user who created the revision.'),
  'relationship' =&gt; array(
    'handler' =&gt; 'views_handler_relationship',
    'base' =&gt; 'users',
    'base field' =&gt; 'uid',
    'label' =&gt; t('user'),
  ),
);