Postgresql and lastInsertId()

Driver for Postgresql returns OIDS from last insert. In documentation of Postgresql 8.0 and 9.0 there is a tip: "Using OIDs in new applications is not recommended(...)".

Now I must write something like this:
QSqlQuery query( "INSERT INTO some_table( field1, field2 ) VALUES( 'val1', 'val2' )" );
qDebug() << query.lastInsertId(); // here we have a OID for example 123456

Then if we want to get id of new record we must do:
QSqlQuery query( "SELECT id FROM some_table WHERE OID = 123456" );

After this select we have a id from last insert. This is difficult and not friendly. Maybe insert in postgresql should use a RETURNING in INSERT statement.

QSqlTableModel can't return a OIDs. If we make:

QSqlTableModel tabModel;
tabModel.setTable( "some_table" );

QSqlRecord rec = tabModel.record();
rec.setValue( "field1", "value1" );
rec.setValue( "field2", "value2" );

tabModel.insertRecord( -1, rec ); // append a record

tabModel.query().lastInsertId(); // return 0

I think that after insertRecord a model make select() and then query return 0. In my opinion lastInsertId in situation with QSqlTableModel is broken.