Bug 192332 Engine does not set values for parameters in a data extraction task
Engine does not set values for parameters in a data extraction task. So if a query binds a paramter, we can not get correct data from document.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/DataExtractionTaskV1.java
Scriptable scope = executionContext.getSharedScope( );
				IPreparedQuery preparedQuery = dataSession.prepare( newQuery );
				results = preparedQuery.execute( scope );
			}
			if ( null != results )
			{
				IResultMetaData metaData = getResultMetaData( rsetName );
				if ( metaData != null )
				{
					return new ExtractionResults( results, metaData,
							this.selectedColumns );
				}
			}
		}
		return null;
	}
	private IExtractionResults extractByInstanceID( InstanceID instanceId )
			throws BirtException
	{
		InstanceID iid = instanceId;
		while ( iid != null )
		{
			long id = iid.getComponentID( );
			ReportItemDesign design = (ReportItemDesign) report
					.getReportItemByID( id );
			IDataQueryDefinition dataQuery = design.getQuery( );
			if ( dataQuery != null  )
			{
				if ( !( dataQuery instanceof IBaseQueryDefinition ) )
				{