[Sqlalchemy-tickets] Issue #3007: allow deleted rows check to take place based on flag (zzzeek/sqlalchemy)

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

New issue 3007: allow deleted rows check to take place based on  flag
https://bitbucket.org/zzzeek/sqlalchemy/issue/3007/allow-deleted-rows-check-to-take-place

Mike Bayer:

see #2403 for original rationale to remote the "check deleted rows", we'll now do this:

        mapper(Parent, parent, confirm_deleted_rows=False)

the flag defaults to True and just emits a warning when the rows matched don't match.