Re: Materialized views WIP patch

On 2/20/13 2:30 PM, Kevin Grittner wrote:
>> Are there TRUNCATE triggers on materialized views?
> No.  Nor SELECT, INSERT, UPDATE, or DELETE triggers.  You can't
> create a trigger of any type on a materialized view.  I don't think
> that would interfere with event triggers, though.

More generally, I would consider the invalidation of a materialized view
a DDL command, whereas truncating a table is a DML command.  This has
various implications with triggers, logging, permissions.  I think it's
not good to mix those two.

Also note that un-invalidating==refreshing a materialized view is
already a DDL command.