ORM Extensions

SQLAlchemy has a variety of ORM extensions available, which add additionalfunctionality to the core behavior.

The extensions build almost entirely on public core and ORM APIs and users shouldbe encouraged to read their source code to further their understanding of theirbehavior. In particular the “Horizontal Sharding”, “Hybrid Attributes”, and“Mutation Tracking” extensions are very succinct.

• Association Proxy
• Automap
• Baked Queries
• Declarative
• Mutation Tracking
• Ordering List
• Horizontal Sharding
• Hybrid Attributes
• Indexable
• Alternate Class Instrumentation