[Sqlalchemy-tickets] Issue #4009: implement MySQL ON DUPLICATE KEY UPDATE (zzzeek/sqlalchemy)

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

New issue 4009: implement MySQL ON DUPLICATE KEY UPDATE
https://bitbucket.org/zzzeek/sqlalchemy/issues/4009/implement-mysql-on-duplicate-key-update

Michael Bayer:

MySQL-specific variant implemented similarly to Postgresql's ON CONFLICT

original issue #960