[kashperuk]

Не знаю, поможет ли, но попробуй вот этот метод использовать (его добавить надо в класс SysQuery)

public client server static Integer dev_countTotal(Query _query)
{
    int                     k;
    Query                   countQuery = _query.newObject(_query.pack(FALSE));
    QueryRun                countQueryRun;
    QueryBuildDataSource    dataSource = countQuery.dataSourceNo(1);
    QueryBuildFieldList     theFieldList = dataSource.fields();
    Common                  record;
    int                     ret = 0;

    // Add contribution from dynalinks...
    countQuery = SysQuery::copyDynalinks(countQuery, _query);
    theFieldList.addField(fieldnum(Common, RecId), SelectionField::COUNT);

    for (k = 2; k <= countQuery.dataSourceCount();k++)
    {
        dataSource = countQuery.dataSourceNo(k);
        theFieldList = dataSource.fields();
        theFieldList.dynamic(false);
        theFieldList.clearFieldList();
        theFieldList.addField(fieldNum(Common,TableId));
    }

    countQueryRun = new QueryRun(countQuery);
    while (countQueryRun.next()) {
        record = countQueryRun.getNo(1);
        ret += record.RecId;
    }

    return ret;
}