diff --git a/core/dbobjectsearch.class.php b/core/dbobjectsearch.class.php
index 1ea481aed..63d31de09 100644
--- a/core/dbobjectsearch.class.php
+++ b/core/dbobjectsearch.class.php
@@ -1133,7 +1133,91 @@ class DBObjectSearch extends DBSearch
 	{
 		return $this->m_oSearchCondition->ApplyParameters(array_merge($this->m_aParams, $aArgs));
 	}
-	
+
+	public function ShorthandExpansion($bClone = false)
+    {
+        if ($bClone)
+        {
+            $oDbObject = $this->DeepClone();
+        }
+        else
+        {
+            $oDbObject = $this;
+        }
+
+
+        $callback = function ($oExpression) use ($oDbObject)
+        {
+            if (!$oExpression instanceof ExternalFieldExpression) {
+                return;
+            }
+            /** @var FieldExpression[] $aFieldExpressionsPointingTo */
+            $aFields = $oExpression->GetFields();
+
+            $aExpressionNewConditions = array();
+            $aRealiasingMap = array();
+            foreach ($aFields as $aFieldExpressionPointingTo)
+            {
+                $oFilter = new DBObjectSearch($aFieldExpressionPointingTo['sClass']);
+                $aExpressionNewConditions[] = array(
+                    'oFilter' => $oFilter,
+                    'sExtKeyAttCode' => $aFieldExpressionPointingTo['sAttCode'],
+                );
+
+                $aRealiasingMap[$aFieldExpressionPointingTo['sClass']] = $aFieldExpressionPointingTo['sAlias'];
+
+            }
+
+
+            /**
+             * the iteration beleow is weird because wee need to
+             * - iterate in the reverse order
+             * - the iteration access the "index+1" so wee start at "length-1" (which is "count()-2")
+             * - whe stop at the index 1, because the index 0 is merged into the $oDbObject
+             */
+            for ($i = count($aExpressionNewConditions) - 2; $i > 0; $i--)
+            {
+                $aExpressionNewConditions[$i]['oFilter']->AddCondition_PointingTo(
+                    $aExpressionNewConditions[$i+1]['oFilter'],
+                    $aExpressionNewConditions[$i]['sExtKeyAttCode'],
+                    TREE_OPERATOR_EQUALS,
+                    $aRealiasingMap
+                );
+            }
+
+
+            $oDbObject->AddCondition_PointingTo(
+                $aExpressionNewConditions[1]['oFilter'],
+                $aExpressionNewConditions[0]['sExtKeyAttCode'],
+                TREE_OPERATOR_EQUALS,
+                $aRealiasingMap
+            );
+
+            foreach ($aRealiasingMap as $sOldAlias => $sNewAlias)
+            {
+                if ($sOldAlias == $sNewAlias)
+                {
+                    continue;
+                }
+
+                if ($sOldAlias != $aFields['sAlias'])
+                {
+                    continue;
+                }
+                $aFields['sAlias'] = $sNewAlias;
+            }
+
+            $oExpression->SetFields($aFields);
+        }; //end of the callback definition
+
+
+        $this->m_oSearchCondition->Browse($callback);
+
+        $this->m_oSearchCondition->Translate(array());
+
+        return $oDbObject;
+    }
+
 	public function ToOQL($bDevelopParams = false, $aContextParams = null, $bWithAllowAllFlag = false)
 	{
 		// Currently unused, but could be useful later
@@ -1264,7 +1348,20 @@ class DBObjectSearch extends DBSearch
 		}
 		elseif ($oExpression instanceof ExternalFieldOqlExpression)
 		{
-			return new ExternalFieldExpression($oExpression->GetName(), $oExpression->GetExpressions());
+			//TODO : convert FieldOqlExpression[] to FieldExpression[]
+            $aOqlFieldExpression = $oExpression->GetExpressions();
+            $aFields = array();
+
+            foreach ($aOqlFieldExpression as $oOqlFieldExpression)
+            {
+                $aFields[] = array(
+                    'sClass'    => $oOqlFieldExpression->GetParent(),
+                    'sAlias'    => $oOqlFieldExpression->GetParent(),
+                    'sAttCode'  => $oOqlFieldExpression->GetName(),
+                );
+            }
+
+		    return new ExternalFieldExpression($oExpression->GetName(), $aFields);
 		}
 		elseif ($oExpression instanceof FieldOqlExpression)
 		{
@@ -1534,7 +1631,7 @@ class DBObjectSearch extends DBSearch
 				$aContextData['sRequestUri'] = '';
 			}
 
-			// Need to identify the query
+			// Need to identify the querySELECT `Contact` FROM Contact AS `Contact` JOIN Organization AS `Organization` ON `Contact`.org_id = `Organization`.id JOIN DeliveryModel AS `DeliveryModel` ON `Organization`.deliverymodel_id = `DeliveryModel`.id WHERE ((((Contact.org_id->deliverymodel_id->name = 'Standard support') AND 1) AND 1) AND 1)
 			$sOqlQuery = $oSearch->ToOql(false, null, true);
 			if ((strpos($sOqlQuery, '`id` IN (') !== false) || (strpos($sOqlQuery, '`id` NOT IN (') !== false))
 			{
@@ -1640,7 +1737,8 @@ class DBObjectSearch extends DBSearch
 
 		if (!isset($oSQLQuery))
 		{
-			$oKPI = new ExecutionKPI();
+            $oSearch = $oSearch->ShorthandExpansion(true);//TODO : check if the clone is really needed (1st param of ShorthandExpansion)
+		    $oKPI = new ExecutionKPI();
 			$oSQLQuery = $oSearch->BuildSQLQueryStruct($aAttToLoad, $bGetCount, $aModifierProperties, $aGroupByExpr, $aSelectedClasses, $aSelectExpr);
 			$oKPI->ComputeStats('BuildSQLQueryStruct', $sOqlQuery);
 
diff --git a/core/oql/expression.class.inc.php b/core/oql/expression.class.inc.php
index bb7f40463..10d546ff7 100644
--- a/core/oql/expression.class.inc.php
+++ b/core/oql/expression.class.inc.php
@@ -843,13 +843,56 @@ class FalseExpression extends ScalarExpression
 
 class ExternalFieldExpression extends UnaryExpression
 {
-	protected $m_aFieldExpressions = array();
+    /**
+     * @var array[]                 array containing the shorthand chained fields & their classes
+     *             ['sClass']       string the Class
+     *             ['sAlias']       string the Class alias
+     *             ['sAttCode']     string the attribute code
+     */
+    protected $m_aFields = array();
 	protected $m_sName;
 
-	public function __construct($sName, $aExpressions)
+	public function __construct($sName, $aFields)
 	{
 		parent::__construct($sName);
+
+        $this->SetFields($aFields);
 	}
+
+	public function SetFields($aFields)
+    {
+        $this->m_aFields = $aFields;
+    }
+
+    public function GetFields()
+    {
+        return $this->m_aFields;
+    }
+
+    public function Translate($aTranslationData, $bMatchAll = true, $bMarkFieldsAsResolved = true)
+    {
+        $aFields = $this->GetFields();
+        $aLastField = end($aFields);
+
+
+        $oRet = new FieldExpression($aLastField['sAttCode'], $aLastField['sAlias']);
+//        $oRet->Translate($aTranslationData, $bMatchAll, $bMarkFieldsAsResolved);
+
+        return $oRet;
+    }
+
+    public function Render(&$aArgs = null, $bRetrofitParams = false)
+    {
+        $aAttCode = array();
+
+        $aFields = $this->GetFields();
+        foreach ($aFields as $field) {
+            $aAttCode[] = $field['sAttCode'];
+        }
+
+        return $aFields[0]['sAlias'] . '.' . implode('->', $aAttCode);
+    }
+
 }
 
 class FieldExpression extends UnaryExpression
diff --git a/core/oql/oqlquery.class.inc.php b/core/oql/oqlquery.class.inc.php
index 2a3dc5260..af5f49d73 100644
--- a/core/oql/oqlquery.class.inc.php
+++ b/core/oql/oqlquery.class.inc.php
@@ -253,7 +253,7 @@ class ExternalFieldOqlExpression extends ExternalFieldExpression implements Chec
             }
             else
             {
-                if ($oFieldOqlExpression->GetName() != 'id')
+                if ($oFieldOqlExpression->GetName() != 'id')  //on lastIteration, the id field can be used, but since it is not supporter by IsValidAttCode we must avoid it
                 {
                      if (!$oModelReflection->IsValidAttCode($sClass, $oFieldOqlExpression->GetName()))
                      {
diff --git a/test/core/oql/OqlInterpreterTest.php b/test/core/oql/OqlInterpreterTest.php
index d58ff22f8..8402d2722 100644
--- a/test/core/oql/OqlInterpreterTest.php
+++ b/test/core/oql/OqlInterpreterTest.php
@@ -9,9 +9,9 @@
 namespace Combodo\iTop\Test\UnitTest\Core\Oql;
 
 use OqlInterpreter;
-use Combodo\iTop\Test\UnitTest\ItopTestCase;
+use Combodo\iTop\Test\UnitTest\ItopDataTestCase;
 
-class OqlInterpreterTest extends ItopTestCase
+class OqlInterpreterTest extends ItopDataTestCase
 {
 	/**
 	 * @throws \Exception
@@ -21,26 +21,81 @@ class OqlInterpreterTest extends ItopTestCase
 		parent::setUp();
 
 		require_once(APPROOT.'/core/cmdbobject.class.inc.php');
-		require_once(APPROOT."core/oql/oqlinterpreter.class.inc.php");
+        require_once(APPROOT."core/oql/oqlinterpreter.class.inc.php");
+        require_once(APPROOT.'core/dbobject.class.php');
+        require_once(APPROOT."core/dbobjectsearch.class.php");
+        require_once(APPROOT."core/modelreflection.class.inc.php");
+
+
 	}
 
-	/**
-	 * @dataProvider ParseProvider
-	 * @param $sQuery
-	 */
-	public function testParse($sQuery)
-	{
-		$oOql = new OqlInterpreter($sQuery);
-		$oTrash = $oOql->Parse(); // Not expecting a given format, otherwise use ParseExpression/ParseObjectQuery/ParseValueSetQuery
 
-		$this->debug($oTrash);
-	}
 
-	public function ParseProvider()
-	{
-		return array(
-			array("SELECT Contact WHERE org_id->deliverymodel_id->name = 'toto'"),
-			array("SELECT Contact WHERE cis_list->name = 'toto'"),
-		);
-	}
+
+    public function testShorthandExpansionCloningOption()
+    {
+        $sQuery = "SELECT Contact  WHERE org_id->deliverymodel_id->name = 'Standard support' AND 1 AND 1 AND 1";
+
+        $oDbObjectSearch = \DBObjectSearch::FromOQL($sQuery);
+        $oDbObjectSearchExpandedClone1 = $oDbObjectSearch->ShorthandExpansion(true);
+        $oDbObjectSearchExpandedClone2 = $oDbObjectSearch->ShorthandExpansion(true);
+        $oDbObjectSearchExpandedBase1 = $oDbObjectSearch->ShorthandExpansion();
+        $oDbObjectSearchExpandedBase2 = $oDbObjectSearch->ShorthandExpansion();
+
+        $this->assertSame($oDbObjectSearchExpandedBase1, $oDbObjectSearch);
+        $this->assertSame($oDbObjectSearchExpandedBase2, $oDbObjectSearch);
+
+        $this->assertNotSame($oDbObjectSearchExpandedClone1, $oDbObjectSearch);
+        $this->assertNotSame($oDbObjectSearchExpandedClone2, $oDbObjectSearch);
+
+        $this->assertNotSame($oDbObjectSearchExpandedClone1, $oDbObjectSearchExpandedClone2);
+
+        $this->debug($oDbObjectSearch->ToOQL());
+    }
+
+    /**
+     * @dataProvider ShorthandExpansionProvider
+     * @param $sQuery
+     */
+    public function testShorthandExpansion($sQuery)
+    {
+        $oDbObjectSearch = \DBObjectSearch::FromOQL($sQuery);
+        $oDbObjectSearchExpanded = $oDbObjectSearch->ShorthandExpansion();
+
+
+        $this->assertSame($oDbObjectSearch, $oDbObjectSearchExpanded);
+
+        $this->debug($oDbObjectSearch->ToOQL());
+    }
+
+    public function ShorthandExpansionProvider()
+    {
+        return array(
+            array("SELECT Contact WHERE org_id->deliverymodel_id->name = 'tato'"),
+            array('SELECT Contact WHERE cis_list->name = "Cluster1"'),
+            array('SELECT Contact WHERE cis_list->name like "%m%"'),
+        );
+    }
+
+
+    /**
+     * @dataProvider ParseProvider
+     * @param $sQuery
+     */
+    public function testParse($sQuery)
+    {
+        $oOql = new OqlInterpreter($sQuery);
+        $oTrash = $oOql->Parse(); // Not expecting a given format, otherwise use ParseExpression/ParseObjectQuery/ParseValueSetQuery
+
+        $this->debug($oTrash);
+    }
+
+    public function ParseProvider()
+    {
+        return array(
+            array("SELECT Contact WHERE org_id->deliverymodel_id->name = 'Standard support'"),
+            array("SELECT Contact WHERE cis_list->name = 'toto'"),
+        );
+    }
+
 }