Bug 153507 Bogus error when bad data set column referenced in group key
Run attached report design. Its group key binding column, "groupkey", is defined to refer to a non-existing data set column: dataSetRow["bad"]. However the actual error seen when previewing the report in BIRT designer: Table (id = 6): + A BIRT exception occurred: Error evaluating Javascript expression. Script engine error: TypeError: valueOf is not a function. Script source: null, line: 0, text: <compiled script>. See next exception for more information. Error evaluating Javascript expression. Script engine error: TypeError: valueOf is not a function. Script source: null, line: 0, text: <compiled script> This error is completely irrelevant to the actual cause of the problem.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryExecutor.java
queryFilters.add( this.baseQueryDefn.getFilters( ).get( i ) );
			}
		}
		
		List multipassFilters = prepareFilters( cx,
				dataSetFilters,
				queryFilters,
				temporaryComputedColumns );
				    
		List computedColumns = null;
		
		computedColumns = this.dataSet.getComputedColumns( );
		if ( computedColumns == null )
			computedColumns = new ArrayList( );
		if ( computedColumns.size( ) > 0
				|| temporaryComputedColumns.size( ) > 0 )
		{
			IResultObjectEvent objectEvent = new ComputedColumnHelper( this.dataSet,
					computedColumns,
					temporaryComputedColumns );
			odiQuery.addOnFetchEvent( objectEvent );
			this.dataSet.getComputedColumns( )
					.addAll( temporaryComputedColumns );
		}
		if ( dataSet.getEventHandler( ) != null )
		{
			OnFetchScriptHelper event = new OnFetchScriptHelper( dataSet );
			odiQuery.addOnFetchEvent( event );
		}
		if ( dataSetFilters.size( )