it just created the new field on table name uuid and assign it as a primary 
key, so the result on table field is :
id, uuid, name
so that's what i do right now
e.g.
*models/db.py*
db.define_table('test',
                Field('uuid'),
                Field('name') )

*controllers/default.py*
def import_csv():
    form = SQLFORM.factory(Field('csvfile', 'upload', uploadfield = False) )
    form.process()
    if form.accepted:
        csvtxt = request.vars.csvfile.file.read()
        csvtxt = csvtxt.replace('Id,Name', 'uuid,name')
        db.test.import_from_csv_file(StringIO(csvtxt) ) #Import CSV file in 
cm1_for_update table
    return dict(form = form)

just wondering is the default id on table that is generated by dal can be 
replace from integer auto increment into uuid type ?

thanks and best regards,
stifan

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