diff -r 000000000000 -r 08ec8eefde2f persistentstorage/dbms/utable/UT_PRJCT.CPP
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/dbms/utable/UT_PRJCT.CPP	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,89 @@
+// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include "UT_STD.H"
+
+// Class HDbColumnMap
+
+class HDbColumnMap
+	{
+public:
+	static HDbColumnMap* NewL(const RSqlColumnList& aSelect,const HDbColumnSet& aColumns);
+	inline const TDbColNo& operator[](TDbColNo aCol) const
+		{__ASSERT(aCol>0&&aCol<=iCount);return iMap[aCol-1];}
+	inline TInt Count() const
+		{return iCount;}
+private:
+	TInt iCount;
+	TDbColNo iMap[1];	// at least one
+	};
+
+HDbColumnMap* HDbColumnMap::NewL(const RSqlColumnList& aSelect,const HDbColumnSet& aColumns)
+	{
+	TInt count=aSelect.Count();
+	HDbColumnMap* self=(HDbColumnMap*)User::AllocLC(_FOFF(HDbColumnMap,iMap[count]));
+	self->iCount=count;
+	TDbColNo* pCol=&self->iMap[0];
+	for (TInt ii=0;ii<count;++ii)
+		{
+		TDbColNo col=aColumns.ColNoL(aSelect[ii]);
+		if (col==KDbNullColNo)
+			__LEAVE(KErrNotFound);
+		*pCol++=col;
+		}
+	CleanupStack::Pop();
+	return self;
+	}
+
+// Class CDbProjectStage
+
+CDbProjectStage::CDbProjectStage()
+	{}
+
+CDbProjectStage::~CDbProjectStage()
+	{
+	delete iMap;
+	}
+
+void CDbProjectStage::ConstructL(const RSqlColumnList& aSelect,const HDbColumnSet& aColumns)
+//
+// Build the column map and allocate a row buffer
+//
+	{
+	iMap=HDbColumnMap::NewL(aSelect,aColumns);
+	}
+
+RDbRow* CDbProjectStage::RowBuffer()
+//
+// whole-row access cannot be done through a projection
+//
+	{
+	return 0;
+	}
+
+TDbColumn CDbProjectStage::Column(TDbColNo aColNo)
+	{
+	return CDbDataStage::Column((*iMap)[aColNo]);
+	}
+
+TInt CDbProjectStage::ColumnCount() const
+	{
+	return iMap->Count();
+	}
+
+const TDbColumnDef& CDbProjectStage::ColumnDef(TDbColNo aCol) const
+	{
+	return CDbDataStage::ColumnDef((*iMap)[aCol]);
+	}