QSqlTableModel support column names with dots

It should be possible to create and use table and column names with dots, like company.names. Various SQL driver implementations, like sqlite and mysql, removes the dots in QSqlDriver::escapeIdentifier when the column is defined like [company.names] or `company.names`, but even if "company.names" is used, it doesn't work.
Returns:

QSqlError("1", "Unable to execute statement", "no such column: company.firstname")

Check the attached code for an example.