Gavin Sherry wrote:

> 
>>>2) Create triggers on DDL
>>
>>That would be more likely CREATE RULE on DDL. In other places we create
>>RULES on statements and TRIGGERS on row-level actions.
> 
> 
> Not a bad idea.

This is probably a much better idea to catch DDL changes directly than
to reconstruct them from pg_catalog.* changes. When system table
definitions change, cross-version replication might get a pain. The less
slony needs to know about pgsql's internal handling, the better.

Regards,
Andreas