Fix NotImplementedError

✅ Solution

NotImplementedError in SQLAlchemy usually means a specific database backend or feature combination lacks implementation for a requested function. To fix this, either choose a different database backend supporting the feature, or contribute the missing implementation to the SQLAlchemy dialect for the current backend, ensuring all necessary logic for the operation is present. If it's related to subqueries or complex constructs, try simplifying the query or using alternative SQLAlchemy functions supported by your backend.