diff options
Diffstat (limited to 'lib/sqlalchemy/dialects/mssql/pymssql.py')
| -rw-r--r-- | lib/sqlalchemy/dialects/mssql/pymssql.py | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/lib/sqlalchemy/dialects/mssql/pymssql.py b/lib/sqlalchemy/dialects/mssql/pymssql.py index 2d355d964..ef15bb266 100644 --- a/lib/sqlalchemy/dialects/mssql/pymssql.py +++ b/lib/sqlalchemy/dialects/mssql/pymssql.py @@ -10,14 +10,27 @@ :name: pymssql :dbapi: pymssql :connectstring: mssql+pymssql://<username>:<password>@<freetds_name>/?charset=utf8 - :url: http://pymssql.org/ pymssql is a Python module that provides a Python DBAPI interface around -`FreeTDS <http://www.freetds.org/>`_. Compatible builds are available for -Linux, MacOSX and Windows platforms. +`FreeTDS <http://www.freetds.org/>`_. + +Modern versions of this driver worked very well with SQL Server and FreeTDS +from Linux and were highly recommended. However, pymssql is currently +unmaintained and has fallen behind the progress of the Microsoft ODBC driver in +its support for newer features of SQL Server. The latest official release of +pymssql at the time of this docuemnt is August, 2018 and lacks support for: + +1. table-valued parameters (TVPs), +2. ``datetimeoffset`` columns using timezone-aware ``datetime`` objects + (values are sent and retrieved as strings), and +3. encrypted connections (e.g., to Azure SQL), when pymssql is installed from + the pre-built wheels. Support for encrypted connections requires building + pymssql from source, which can be a nuisance, especially under Windows. + +The above features are all supported by mssql+pyodbc when using Microsoft's +ODBC Driver for SQL Server (msodbcsql), which is now available for Windows, +(several flavors of) Linux, and macOS. -Modern versions of this driver work very well with SQL Server and -FreeTDS from Linux and is highly recommended. """ # noqa import re |