Bug 123036 Data in a reprot is doubly stored
We currently stored data twice. Once in the content stream, once by DtE. The instance stored by content stream should not be there.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/RDSave.java
*/
	public void saveResultIterator( CachedResultSet odiResult, int groupLevel,
			int[] subQueryInfo ) throws DataException
	{
		if ( context != null
				&& context.getMode( ) == DataEngineContext.MODE_GENERATION )
		{
			try
			{
				boolean isSubQuery = subQueryName != null;
				OutputStream streamForResultClass = null;
				OutputStream streamForGroupInfo = context.getOutputStream( queryResultID,
						subQueryID,
						DataEngineContext.GROUP_INFO_STREAM );
				if ( isSubQuery == false )
				{
					streamForResultClass = context.getOutputStream( queryResultID,
							subQueryID,
							DataEngineContext.RESULTCLASS_STREAM );
				}
				odiResult.doSave( streamForResultClass,
						streamForGroupInfo,
						isSubQuery );
				streamForGroupInfo.close( );
				if ( streamForResultClass != null )
					streamForResultClass.close( );
				
				if ( subQueryName != null
						&& context.hasStream( queryResultID,
								subQueryName,