1. bulk_insert() operation was not working most likely since the 0.2 series when used with an engine. #41 2. Repaired bulk_insert() to complete when used against a lower-case-t table and executing with only one set of parameters, working around SQLAlchemy bug #2461 in this regard. 3. bulk_insert() uses "inline=True" so that phrases like RETURNING and such don't get invoked for single-row bulk inserts. 4. bulk_insert() will check that you're passing a list of dictionaries in, raises TypeError if not detected.