Re: Materialized views WIP patch

Peter Eisentraut <peter_e@gmx.net> wrote:
> On 2/20/13 11:14 PM, Greg Stark wrote:
>> That's not entirely true. From the database's point of view,
>> TRUNCATE is in many ways actually DDL.
>
> Whether something is DDL or DML or a read operation (query) is
> not an implementation detail, it's a user-exposed category.
> Since TRUNCATE is logically equivalent to DELETE, it's a DML
> operation, as far as the user is concerned.

Not really.  It doesn't follow the same MVCC behavior as DML.  This
is user-visible, documented behavior.

--
Kevin Grittner
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