diff --git a/lib/Doctrine/Hydrate.php b/lib/Doctrine/Hydrate.php
index 21f5051a1..fa5a797ce 100644
--- a/lib/Doctrine/Hydrate.php
+++ b/lib/Doctrine/Hydrate.php
@@ -22,7 +22,7 @@
 /**
  * Doctrine_Hydrate is a base class for Doctrine_RawSql and Doctrine_Query.
  * Its purpose is to populate object graphs.
- *
+ *                         
  *
  * @package     Doctrine
  * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
@@ -171,6 +171,30 @@ class Doctrine_Hydrate extends Doctrine_Object implements Serializable
         }
         $this->_conn = $connection;
     }
+    /**
+     * getRootAlias
+     * returns the alias of the the root component
+     *
+     * @return array
+     */
+    public function getRootAlias()
+    {
+        reset($this->_aliasMap);
+
+        return key($this->_aliasMap);
+    }
+    /**
+     * getRootDeclaration
+     * returns the root declaration
+     *
+     * @return array
+     */
+    public function getRootDeclaration()
+    {
+        $map = reset($this->_aliasMap);
+
+        return $map;
+    }
     /**
      * getRoot
      * returns the root component for this object
@@ -374,7 +398,11 @@ class Doctrine_Hydrate extends Doctrine_Object implements Serializable
         if ( ! isset($this->_tableAliasSeeds[$alias])) {
             $this->_tableAliasSeeds[$alias] = 1;
         }
+
         while (isset($this->_tableAliases[$alias])) {
+            if ( ! isset($this->_tableAliasSeeds[$alias])) {
+                $this->_tableAliasSeeds[$alias] = 1;
+            }
             $alias = $char . ++$this->_tableAliasSeeds[$alias];
         }
 
@@ -558,7 +586,8 @@ class Doctrine_Hydrate extends Doctrine_Object implements Serializable
     public function copyAliases(Doctrine_Hydrate $query)
     {
         $this->_tableAliases = $query->_tableAliases;
-
+        $this->_aliasMap     = $query->_aliasMap;
+        $this->_tableAliasSeeds = $query->_tableAliasSeeds;
         return $this;
     }
     /**
diff --git a/lib/Doctrine/Query.php b/lib/Doctrine/Query.php
index 3483e8ced..1e9b355cc 100644
--- a/lib/Doctrine/Query.php
+++ b/lib/Doctrine/Query.php
@@ -283,7 +283,6 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
             throw new Doctrine_Query_Exception('This query object is locked. No query parts can be manipulated.');
         }
 
-
         // sanity check
         if ($queryPart === '' || $queryPart === null) {
             throw new Doctrine_Query_Exception('Empty ' . $queryPartName . ' part given.');
@@ -529,7 +528,9 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
         foreach ($this->pendingSubqueries as $value) {
             list($dql, $alias) = $value;
 
-            $sql = $this->createSubquery()->parseQuery($dql, false)->getQuery();
+            $subquery = $this->createSubquery();
+
+            $sql = $subquery->parseQuery($dql, false)->getQuery();
 
             reset($this->_aliasMap);
             $componentAlias = key($this->_aliasMap);
@@ -727,10 +728,11 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
         $parts = $this->_dqlParts;
 
         // reset the state
-        $this->_aliasMap = array();
-        $this->pendingAggregates = array();
-        $this->aggregateMap = array();
-        
+        if ( ! $this->isSubquery()) {
+            $this->_aliasMap = array();
+            $this->pendingAggregates = array();
+            $this->aggregateMap = array();
+        }
         $this->reset();   
 
         // parse the DQL parts
@@ -1238,7 +1240,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
                     }
 
                 } else {
-                                  
+
                     $queryPart = $join . $foreignSql
                                . ' ON ' 
                                . $this->_conn->quoteIdentifier($localAlias . '.' . $relation->getLocal())