Bug 118592 Report error
please see attached design file.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
String name = colref.getColumnName( );
					
					if ( JSRowObject.ROW_POSITION.equals( name ) )
						return new Integer( odiResult.getCurrentResultIndex( ) );
					else if ( odiResult.getCurrentResult( ) != null )
						return odiResult.getCurrentResult( )
								.getFieldValue( name );
					else
						return null;
				}
			}
			else
			{
				return ScriptEvalUtil.convertNativeObjToJavaObj( expr.evaluate( cx,
						scope ) );
			}
		}
		catch ( DataException e )
		{
			throw e;
		}
	}
	/**
	 * Returns the value of a query result expression. A given data expression
	 * could be for one of the Selected Columns (if detail rows are used), or of
	 * an Aggregation specified in the prepared ReportQueryDefn spec. When
	 * requesting for the value of a Selected Column, its value in the current
	 * row of the iterator will be returned.
	 * <p>
	 * Throws an exception if a result expression value is requested out of