[Cardagant]

Попробуйте вот так:

    qbds = query.addDataSource(tableNum(FactureJour_RU));
    qbds.addRange(fieldNum(FactureJour_RU, Module)).value(queryValue(FactureModule_RU::Vend));

    qbds = query.dataSourceTable(tableNum(FactureJour_RU)).addDataSource(tableNum(LedgerTrans));
    qbds.relations(false);
    qbds.addLink(fieldNum(FactureJour_RU, Voucher), fieldNum(LedgerTrans, Voucher));
    qbds.joinMode(JoinMode::InnerJoin);
    qbds.addRange(fieldNum(LedgerTrans, TransDate)).value(strfmt('((%1 >= %2) && (%1 <= %3))', fieldstr(LedgerTrans, TransDate),date2StrXpp(startDate), date2StrXpp(endDate)));
    qbds.fetchMode(QueryFetchMode::One2One);

    qbds = query.dataSourceTable(tableNum(FactureJour_RU)).addDataSource(tableNum(PurchBookVATProcessLogTrans_RU));
    qbds.relations(true);
    qbds.joinMode(JoinMode::NoExistsJoin);
    qbds.fetchMode(QueryFetchMode::One2One);