diff -r d6088dba8fea -r 2a2d0d5df03b pgtoolkit/pgmanager.py
--- a/pgtoolkit/pgmanager.py	Tue May 06 18:37:41 2014 +0200
+++ b/pgtoolkit/pgmanager.py	Tue May 06 18:37:43 2014 +0200
@@ -334,6 +334,9 @@
         del self.conn_known[name]
         del self.conn_pool[name]
 
+    def knows_conn(self, name='default'):
+        return name in self.conn_known
+
     def get_conn(self, name='default'):
         '''Get connection of name 'name' from pool.'''
         self._check_fork()