[Sqlalchemy-tickets] Issue #3162: ORM evaluator is surprisingly inflexible (zzzeek/sqlalchemy)

[eevee <iss...@bi...>]

New issue 3162: ORM evaluator is surprisingly inflexible
https://bitbucket.org/zzzeek/sqlalchemy/issue/3162/orm-evaluator-is-surprisingly-inflexible

eevee:

Current problem I'm having is that it doesn't know how to evaluate `op("&")`, but from the looks of it, it also won't understand hybrid properties (which would seem to exist for exactly this purpose!) or custom operators or custom `ClauseElement` subclasses.  There doesn't seem to be any way to extend it at all, and it's barely been updated since it was written.