If one releases an extension with say a version number of 0.1 and then releases one with important changes at 0.2, how is the best way to manage these changes? I couldn't find anything in the docs to discuss this issue. Am I missing something?
Specifically for pg_message_queue, for 0.2 I would like to change the type of a field from text (constrained to 'text', 'xml' or 'bytea) to regtype. Not sure where to put the DDL for an upgrade.
Best Wishes,
Chris Travers
