[wojzeh]

private server static container ountPrim(container _queryPack)
{
    Query                   countQuery;
    QueryRun                countQueryRun;
    QueryBuildDataSource    qbds;
    QueryBuildFieldList     qbfl;
    Common                  common;
    Integer                 counter;
    Integer                 loops;
    
    Integer                 tmxGroupNumber;
    Integer                 tmxDataSourceNumber;
    ;
    countQueryRun   = new QueryRun(_queryPack);
    countQuery      = countQueryRun.query();
    tmxGroupNumber  = countQuery.groupByFieldCount(); //<-- this guarantees number of groupings

    for (tmxDataSourceNumber = 1; tmxDataSourceNumber <= countQuery.dataSourceCount(); tmxDataSourceNumber++)
    {
        qbds = countQuery.dataSourceNo(tmxDataSourceNumber);
         qbds.update(false);
        //qbds.sortClear();

        //tmxGroupNumber +=(qbds.orderMode()==orderMode::GroupBy); 
        qbfl = qbds.fields();
        qbfl.dynamic(false);
        qbfl.clearFieldList();
         qbds.addSelectionField(fieldNum(Common,RecId),SelectionField::Count);
    }
  
    countQueryRun   = new QueryRun(countQuery);

    while (countQueryRun.next())
    {
         common  = countQueryRun.getNo(1);
        counter += common.RecId;
        loops++;
    }
    //return [counter,loops];
    return [counter,(tmxGroupNumber ? loops : counter)];
 }