Bug 210620 UNION does not work correctly in Mysql [0703]
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ParameterUtil.java
{
		
		int i = findParameterHint( paramHints,
				binding.getPosition( ),
				binding.getName( ) );
		
		if ( i < 0 )
		{
			
			
			if ( logger != null )
				logger.warning( "Ignored binding defined for non-exising data set parameter: " 
						+ "name=" 
						+ binding.getName( )
						+ ", position=" 
						+ binding.getPosition( ) );
		}
		
		
		
		else if ( !bindingResolved[i] )
		{
			Object value = ( cx != null )
					? evaluateInputParameterValue( this.scope, cx, binding )
					: binding.getExpr( );
			String valueStr = getParameterValueString( paramHints[i].getDataType( ),
					value );
			paramHints[i].setDefaultInputValue( valueStr );
			bindingResolved[i] = true;