[web2py] db manipulation

[davidjensen]

In db.py, I created a db 'contacts' with a table 'mytable'. I later
added a field 'date' to mytable.

db.define_table('mytable',
    Field('date',requires=IS_NOT_EMPTY()),
    Field('name',requires=IS_NOT_EMPTY()),
    Field('organization'),
    Field('notes','text', requires=IS_NOT_EMPTY())
    )

The new field did not show. Is it necessary to use db.executesql with
an alter statement or is there a way to do this in web2py? I can also
use sqlite3 command line.

Thanks,