Storing QStringList to a MySQL table field

[Axtroz]

Greetings!
I am trying to store a QStringList into MySQL, but it always executes the query without the string list itself.

query.clear(); // make sure the query is empty
    QStringList ports;
    ports << "first" << "second" << "third";
    query.prepare("INSERT INTO switches(model,address,location,nas_ip,voltage,notes,ports) "
                  "VALUES ('1','3','test',INET_ATON('10.0.0.3'),220,'test',?)");
    query.addBindValue(ports);
    qDebug() << query.boundValue(0); // this returns the qstringlist as it should
    query.exec();
    qDebug() << query.executedQuery(); // this displays "INSERT INTO switches(model,address,location,nas_ip,voltage,notes,ports) VALUES ('1','3','test',INET_ATON('10.0.0.3'),220,'test',?)"

query.clear(); // make sure the query is empty
    QStringList ports;
    ports << "first" << "second" << "third";
    query.prepare("INSERT INTO switches(model,address,location,nas_ip,voltage,notes,ports) "
                  "VALUES ('1','3','test',INET_ATON('10.0.0.3'),220,'test',?)");
    query.addBindValue(ports);
    qDebug() << query.boundValue(0); // this returns the qstringlist as it should
    query.exec();
    qDebug() << query.executedQuery(); // this displays "INSERT INTO switches(model,address,location,nas_ip,voltage,notes,ports) VALUES ('1','3','test',INET_ATON('10.0.0.3'),220,'test',?)"

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I tried using a placeholder and bindValue but the result is almost the same, instead of "?" the executed query contains the placeholder
the ports field is a BLOB field. Any thoughts? Thanks in advance!