Bug 118592 Report error
please see attached design file.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
if( odiResult.getCurrentResult() == null )
			return false;
		do
		{
			for ( int i = 0; i < columnNames.length; i++ )
			{
				if ( groupKeyValuesEqual( groupKeyValues, columnNames, i ) )
				{
					if ( i == columnNames.length - 1 )
						return true;
				}
				else
				{
					
					
					this.skipToEnd( i + 1 );
					break;
				}
			}
		} while ( odiResult.next( ) );
		return false;
	}
	/**
	 * @param groupKeyValues
	 * @param columnNames
	 * @param i
	 * @return
	 * @throws BirtException
	 */
	private boolean groupKeyValuesEqual( Object[] groupKeyValues,