Can you share a stack trace please ? Encoding operations can occur in many
places and I don't see that identified here. Also this is Python 3? What OS
platform and ODBC driver / configuration as well? If freetds please share your
freetds config too.
> On Mar 4, 2016, at 2:51 PM, Tim Pierson <tim.pier...@gmail.com> wrote:
>
> I've seen a couple of issues regarding mssql and drivers handling of strings
> but I haven't been able to resolve my problem.
>
> I have a flask app with flask-sqlalchemy models defined and a simple query is
> throwing the above complaint about decoding the string.
>
> My connection string:
> mssql+pyodbc://[...]/[...]?trusted_connection=yes&charset=utf8&deprecate_large_types=True
> A
>
> Which is given to the SQLAlchemy class instance db after the initialization
> of the app with:
>
> db.init_app(app)
>
> The offending model:
>
> class Annotations(db.Model):
> id = db.Column(db.Integer, primary_key=True)
> creation_date = db.Column(db.DateTime, default=datetime.datetime.now)
> created_by = db.Column(db.String, nullable=False)
> annotation = db.Column(sqlalchemy.Unicode, nullable=False)
> annotation_type_id = db.Column(db.Integer,
> db.ForeignKey('AnnotationTypes.id'))
>
>
> The query:
>
> db.session.query(Annotations.annotation).all()
>
> I've replaced the original column type db.String with sqlalchemy.Unicode on
> the field that throws the error as per an earlier question on this list but
> it hasn't resolved the problem.
>
> Could someone offer any pointers?
>
> Thanks,
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