Bug 187445 The joint result of script computed column is incorrect[07]
Description: 1, Each dataset including a computed column: name: index; type:integer; expression:0 2, Specify the script of datasets to: beforeOpen: index=0; onFetch: row["index"] = index; index++; 3, Join the two datasets Build number: 2.2.0.v20070516-0630 Steps to reproduce: 1, open the attached report design 2, open the joint dataset and preview Actual result: The result of column Data "Set1::index" is all 0 but no value 1.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ComputedColumnHelper.java
* @return
	 */
	private List getComputedNameList( List dataSetCCList )
	{
		List result = new ArrayList( );
		for ( int i = 0; i < dataSetCCList.size( ); i++ )
		{
			IComputedColumn column = (IComputedColumn) dataSetCCList.get( i );
			result.add( column.getName( ) );
		}
		return result;
	}	
	/**
	 * 
	 * @param dataSetCCList
	 * @return
	 * @throws DataException 
	 */
	private void getAvailableComputedList( List refernceNameList,
			List dataSetCCList, List result ) throws DataException
	{
		try
		{
			for ( int i = 0; i < dataSetCCList.size( ); i++ )
			{
				IComputedColumn column = (IComputedColumn) dataSetCCList.get( i );
				if ( !refernceNameList.contains( column.getName( ) ) )
				{
					continue;
				}