Bug 206279 Removed computed cols listed in expression builder[07]
Description: Removed computed column listed in expression builder inside DataSet Editor dialog Build number:2.2.2.v20071011 Steps to reproduce: 1. New data source and dataset. 2. Add a computed column in dataset and click OK. 3. Open the dataset, remove the computed column. 4. Add a new computed column and check columns in available Data Sets. Expected result: The removed computed column isn't there. Actual result: The removed computed column is still there for selection. Error log:n/a
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/data/ui/util/DataSetProvider.java
while ( iterator.hasNext( ) )
		{
			ResultSetColumnHandle rsColumnHandle = (ResultSetColumnHandle) iterator.next( );
			assert rsColumnHandle.getPosition( ) != null;
			if ( rsColumnHandle.getPosition( ).intValue( ) == column.getPosition( ) )
			{
				if ( rsColumnHandle.getColumnName( ) != null
						&& !rsColumnHandle.getColumnName( )
								.equals( column.getDataSetColumnName( ) ) )
				{
					try
					{
						rsColumnHandle.setColumnName( column.getDataSetColumnName( ) );
					}
					catch ( SemanticException e )
					{
					}
				}
				break;
			}
		}
	}
	
	/**
	 * 
	 * @param session
	 * @param queryDefn
	 * @return
	 * @throws BirtException
	 */