[Sqlalchemy-tickets] Issue #4121: no handler for SQL Server / pyodbc BINARY (zzzeek/sqlalchemy)

[Michael B. <iss...@bi...>]

New issue 4121: no handler for SQL Server / pyodbc BINARY
https://bitbucket.org/zzzeek/sqlalchemy/issues/4121/no-handler-for-sql-server-pyodbc-binary

Michael Bayer:

the pyodbc driver should send pyodbc.NullParam when None is sent, which helps for the freetds driver.

Demo, which run for me as I'm on the MS drivers right now:


```
#!python

from sqlalchemy import *

e = create_engine("mssql+pyodbc://scott:tiger^5HHH@mssql2017:1433/test?driver=ODBC+Driver+13+for+SQL+Server", echo=True)

m = MetaData()

t = Table('t', m, Column('data', BINARY(100)))

conn = e.connect()
trans = conn.begin()


t.create(conn)
conn.execute(t.insert(), data=None)

```