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
}
			}
			odiQuery.setGrouping( Arrays.asList( groupSpecs ) );
		}
	}
	/**
	 * Populate the sortings in a query.
	 * 
	 * @throws DataException
	 */
	private void populateSorting( ) throws DataException
	{
		List sorts = this.baseQueryDefn.getSorts( );
		if ( sorts != null && !sorts.isEmpty( ) )
		{
			IQuery.SortSpec[] sortSpecs = new IQuery.SortSpec[sorts.size( )];
			Iterator it = sorts.iterator( );
			for ( int i = 0; it.hasNext( ); i++ )
			{
				ISortDefinition src = (ISortDefinition) it.next( );
				int sortIndex = -1;
				String sortKey = src.getColumn( );
				if ( sortKey == null )
					sortKey = src.getExpression( ).getText( );
				else
				{
					sortKey = getColumnRefExpression( sortKey );
				}
				temporaryComputedColumns.add( new ComputedColumn( "_{$TEMP_SORT_"
						+ i + "$}_",