утечка памяти в QTableWidget + QSqlQuery Опции

[gmurik2]

Вот есть некий код

setActiveOrdersTable_Apply() {   
     QSqlQuery *query = new QSqlQuery();
    if(!query->exec(
                tr("SELECT ..."))) {
        QMessageBox::information(0,"Error", query->lastError().databaseText());
    }
    QString OrderState = "";
    int row;
    while(query->next()) {
        if(query->value(10).toString() != OrderState) {
            OrderState = query->value(10).toString();
            row = ui.ActiveOrdersTable->rowCount();
            ui.ActiveOrdersTable->insertRow(row);

            ui.ActiveOrdersTable->setSpan(row,0,1,ui.ActiveOrdersTable->columnCount());
            ui.ActiveOrdersTable->setItem(row,0,new QTableWidgetItem(query->value(10).toString()));
            ui.ActiveOrdersTable->item(row,0)->setTextAlignment(Qt::AlignCenter | Qt::AlignVCenter);
            ui.ActiveOrdersTable->item(row,0)->setFlags(Qt::NoItemFlags);
            ui.ActiveOrdersTable->item(row,0)->setBackgroundColor(QColor("#f9f99e"));
        }
        row = ui.ActiveOrdersTable->rowCount();
        ui.ActiveOrdersTable->insertRow(row);

        ui.ActiveOrdersTable->setItem(row,0,new QTableWidgetItem(query->value(0).toString()));
        ui.ActiveOrdersTable->item(row,0)->setTextAlignment(Qt::AlignRight | Qt::AlignVCenter);
        ui.ActiveOrdersTable->item(row,0)->setFlags(Qt::ItemIsSelectable);

        и.т.п копипаст последних 3 строк
    }
    ui.ActiveOrdersTable->resizeRowsToContents();
    delete query;
}

далее по таймеру вызываю

void TaxSyst::updateActOrdersTable() {
    int selRow = ui.ActiveOrdersTable->currentRow();
    ui.ActiveOrdersTable->clearSpans();
        for(int i = ui.ActiveOrdersTable->rowCount(); i >= 0; i--) {
                for(int j = ui.ActiveOrdersTable->columnCount(); j >= 0; j--) {
                    delete ui.ActiveOrdersTable->item(i,j);
                }
                ui.ActiveOrdersTable->removeRow(i);
    }
        setActiveOrdersTable_Apply();
}

и соответственно идет утечка памяти по каждому срабатыванию таймера, подскажите где вилы зарыты