[Sqlalchemy-tickets] Issue #3992: synchronize_session='fetch' should, you know, 'fetch' the actual data (zzzeek/sqlalchemy)

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

New issue 3992: synchronize_session='fetch' should, you know, 'fetch' the actual data
https://bitbucket.org/zzzeek/sqlalchemy/issues/3992/synchronize_session-fetch-should-you-know

Michael Bayer:

synchronize_session='fetch' currently runs the SELECT and then expires the objects.   If we're running a SELECT, we should be fetching the actual keys that changed and populating, not expiring.    perhaps we'd call this "eager_fetch" in case we're worried about side effects, but I think just switching "fetch" is fine, the term "fetch" implies something's being fetched.