Attachments to Doctrine Jira Issue DDC-1172 - https://github.com/doctrine/doctrine2/issues/1775

10996_DoctrineDropSequencePatch.diff

Index: Doctrine/ORM/Tools/SchemaTool.php
===================================================================
--- Doctrine/ORM/Tools/SchemaTool.php	(revision 50)
+++ Doctrine/ORM/Tools/SchemaTool.php	(working copy)
@@ -570,6 +570,10 @@
                 }
             }
         }
+		
+		foreach ($fullSchema->getSequences() AS $sequence) {
+			$visitor->acceptSequence($sequence);
+		}
 
         return $visitor->getQueries();
     }