Bug 147977 Chart editor does not use container's column bindings
1) create data source 2) create data set: select * from customers 3) create table 4) bind country, customer name to table 5) group by country 6) create a binding for total_by_country which aggregates # of customers in each country. put a data element in group footer and bind to total_by_country 7) in group header put chart 8) in data tab specify inherit from container Result: You see columns for report data set created in step 2. Expected Result: Just 3 columns for the 3 bindings created in 4 and 6.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/GroupDefnUtil.java
return isEqualStr( groupDefn1.getName( ), groupDefn2.getName( ) )
				&& isEqualStr( groupDefn1.getKeyColumn( ),
						groupDefn2.getKeyColumn( ) )
				&& isEqualStr( groupDefn1.getKeyExpression( ),
						groupDefn2.getKeyExpression( ) )
				&& groupDefn1.getSortDirection( ) == groupDefn2.getSortDirection( )
				&& QueryDefnUtil.isEqualSorts( groupDefn1.getSorts( ),
						groupDefn2.getSorts( ) )
				&& FilterDefnUtil.isEqualFilter( groupDefn1.getFilters( ),
						groupDefn2.getFilters( ) )
				&& QueryDefnUtil.isCompatibleSQs( groupDefn1.getSubqueries( ),
						groupDefn2.getSubqueries( ) );
	}
	/**
	 * @param str1
	 * @param str2
	 * @return
	 */
	private static boolean isEqualStr( String str1, String str2 )
	{
		if ( str1 == str2 )
			return true;
		if ( str1 == null || str2 == null )
			return false;
		return str1.equals( str2 );
	}
	
	
}