diff --git a/lib/Doctrine/Hydrator/Graph.php b/lib/Doctrine/Hydrator/Graph.php
index b227f3874..8578f4871 100644
--- a/lib/Doctrine/Hydrator/Graph.php
+++ b/lib/Doctrine/Hydrator/Graph.php
@@ -311,17 +311,11 @@ protected function _gatherRowData(&$data, &$cache, &$id, &$nonemptyComponents)
                 $table = $this->_queryComponents[$cache[$key]['dqlAlias']]['table'];
                 $fieldName = $table->getFieldName($last);
                 $cache[$key]['fieldName'] = $fieldName;
-
-                if (isset($this->_queryComponents[$cache[$key]['dqlAlias']]['agg_field'][$last])) {
-                    $fieldName = $this->_queryComponents[$cache[$key]['dqlAlias']]['agg_field'][$last];
-                }
-
                 if ($table->isIdentifier($fieldName)) {
                     $cache[$key]['isIdentifier'] = true;
                 } else {
                   $cache[$key]['isIdentifier'] = false;
                 }
-
                 $type = $table->getTypeOfColumn($last);
                 if ($type == 'integer' || $type == 'string') {
                     $cache[$key]['isSimpleType'] = true;
diff --git a/lib/Doctrine/Query.php b/lib/Doctrine/Query.php
index a4d0b40f8..c446274d3 100644
--- a/lib/Doctrine/Query.php
+++ b/lib/Doctrine/Query.php
@@ -648,10 +648,6 @@ public function parseSelect($dql)
 
                 $this->_queryComponents[$componentAlias]['agg'][$index] = $alias;
 
-                if (preg_match('/^([^\(]+)\.(\'?)(.*?)(\'?)$/', $expression, $field)) {
-                    $this->_queryComponents[$componentAlias]['agg_field'][$index] = $field[3];
-                }
-
                 $this->_neededTables[] = $tableAlias;
             } else {
                 $e = explode('.', $terms[0]);
diff --git a/lib/Doctrine/Query/Abstract.php b/lib/Doctrine/Query/Abstract.php
index 247886f1c..6042ed18e 100644
--- a/lib/Doctrine/Query/Abstract.php
+++ b/lib/Doctrine/Query/Abstract.php
@@ -206,16 +206,6 @@ abstract class Doctrine_Query_Abstract
      *
      *          map                 the name of the column / aggregate value this
      *                              component is mapped to a collection
-     *
-     *          agg_field     the field names for each aggregates
-     *                              Example:
-     *                                  DQL: COMPONENT.FIELD as ALIAS
-     *                                  SQL: TABLE.COLUMN as TABLE__0
-     *                                  $_queryComponents
-     *                                      agg:
-     *                                          0: ALIAS
-     *                                      agg_field:
-     *                                          0: FIELD
      */
     protected $_queryComponents = array();
 
@@ -1269,9 +1259,6 @@ protected function _constructQueryFromCache($cached)
             if (isset($components['agg'])) {
                 $queryComponents[$alias]['agg'] = $components['agg'];
             }
-            if (isset($components['agg_field'])) {
-                $queryComponents[$alias]['agg_field'] = $components['agg_field'];
-            }
             if (isset($components['map'])) {
                 $queryComponents[$alias]['map'] = $components['map'];
             }
@@ -1302,9 +1289,6 @@ public function getCachedForm($customComponent = null)
             if (isset($components['agg'])) {
                 $componentInfo[$alias]['agg'] = $components['agg'];
             }
-            if (isset($components['agg_field'])) {
-                $componentInfo[$alias]['agg_field'] = $components['agg_field'];
-            }
             if (isset($components['map'])) {
                 $componentInfo[$alias]['map'] = $components['map'];
             }