Question

So far I have used the following statements in SQLAlchemy to implement table inheritance via ALTER TABLE:

inherit = "ALTER TABLE %(fullname)s INHERIT parent_table"

DDL(inherit, on='postgresql').execute_at("after-create", child_table)

This is deprecated in SQLAlchemy now, and I am a bit confused about the new method through
DDLEvents, DDLElement.execute_if(), listeners and events in general.

What is the correct way to create and execute DDL() constructs in SQLAlchemy 0.7+?

Answer 1

Look at an example in documentation, your code can be rewritten as:

event.listen(child_table, "after-create", DDL(inherit).execute_if(dialect='postgresql'))