Bug 172618 [smoke]Cascading parameter cannot retrieve correct values.[0705]
Description: Cascading parameter cannot retrieve correct values. Build number:2.1.2.v20070202. 2.2.0.v20070131 Steps to reproduce: 1. New sample data source and dataset from OFFICES. 2. New a cascading group, first parameter from COUNTRY, second from STATE 3. Preview. Expected result: Select a country value, then corresponding state value will display. e.g. select France, then only paris in second list. Actual result: Select France, you will see paris, NYC and San Francisco in second list. Error log:N/A
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
this.odiResult = odiResult;
		this.scope = scope;
		this.context = rService.getContext( );
		
		this.validateManualBindingExpressions ( this.resultService.getQueryDefn().getResultSetExpressions() );
		
		this.start( );
	}
	/**
	 * Test if there are column bindings that refer to inexist data set columns.
	 * 
	 * @param exprs
	 * @throws DataException
	 */
	private void validateManualBindingExpressions( Map exprs )
			throws DataException
	{
		Set validDataSetColumnNames = populateValidDataSetColumnNameSet( ); 
		Iterator it = exprs.keySet().iterator();
		while( it.hasNext() )
		{
			Object key = it.next();
			IBaseExpression expr =  (IBaseExpression)exprs.get(key);
			List usedDataSetExprs = ExpressionCompilerUtil.extractDataSetColumnExpression( expr );
			for ( int j = 0; j < usedDataSetExprs.size( ); j++ )
			{
				if ( !( validDataSetColumnNames.contains( usedDataSetExprs.get( j ) ) || usedDataSetExprs.get( j )
						.equals( "_rowPosition" ) ) )
					throw new DataException( ResourceConstants.COLUMN_BINDING_REFER_TO_INEXIST_COLUMN,
							new Object[]{