Remove Doctrine\DBAL\Table\Schema#renameColumn()

UPGRADE

 # Upgrade to 2.3
 
+## Doctrine\DBAL\Schema\Table#renameColumn() removed
+
+Doctrine\DBAL\Schema\Table#renameColumn() was removed, because it drops and recreates
+the column instead. There is no fix available, because a schema diff
+cannot reliably detect if a column was renamed or one column was created
+and another one dropped.
+
 ## Schema Filter paths
 
-The Filter Schema assets expression is not wrapped in () anymore for the regexp.
+The Filter Schema assets expression is not wrapped in () anymore for the regexp automatically.
 
 Before:
 

lib/Doctrine/DBAL/Schema/Table.php

@@ -270,11 +270,9 @@ class Table extends AbstractAsset
      */
     public function renameColumn($oldColumnName, $newColumnName)
     {
-        $column = $this->getColumn($oldColumnName);
-        $this->dropColumn($oldColumnName);
-
-        $column->_setName($newColumnName);
-        return $this;
+        throw new DBALException("Table#renameColumn() was removed, because it drops and recreates " .
+            "the column instead. There is no fix available, because a schema diff cannot reliably detect if a " .
+            "column was renamed or one column was created and another one dropped.");
     }
 
     /**