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
}
				}
				IQuery.GroupSpec dest = QueryExecutorUtil.groupDefnToSpec( cx,
						src,
						expr,
						groupName,
						-1 );
				groupSpecs[i] = dest;
				if ( ( dest.getInterval( ) != IGroupDefinition.NO_INTERVAL )
						&& ( dest.getIntervalRange( ) != 0 ) )
				{
					if (dest.getInterval( ) == IGroupDefinition.STRING_PREFIX_INTERVAL)
					{
						temporaryComputedColumns.add( new ComputedColumn( groupName,
								expr,
								DataType.STRING_TYPE ) );
					}
					else
					{
						temporaryComputedColumns.add( new ComputedColumn( groupName,
								expr,
								DataType.INTEGER_TYPE ) );
					}
					
				}
				else
				{
					temporaryComputedColumns.add( new ComputedColumn( groupName,
							expr,
							QueryExecutorUtil.getTempComputedColumnType( groupSpecs[i].getInterval( ) ) ) );