On Thu, 2008-01-31 at 10:22 +0000, Gregory Stark wrote:
> "Decibel!" <decibel(at)decibel(dot)org> writes:
> > CLUSTER isn't DDL. Most forms of ALTER TABLE are. And CREATE blah, etc.
> Fwiw I would call CLUSTER DDL. Note that it does make a change that's visible
> in the table definition afterwards.
> There are plenty of DDL commands which modify data (CREATE INDEX, ATLER TABLE
> ALTER COLUMN TYPE). The defining characteristic of DDL is not that it doesn't
> modify the data but that it does modify the table definition.
> By that definition CLUSTER is DDL and TRUNCATE is DDL if you look at the
> implementation rather than the user-visible effects.
Surely the question is more simple: do we want triggers on it?
There's a clear case for TRUNCATE to have a triggers.
Is there a clear case for any other statements (however you categorise
them)? If so, lets hear it, please.
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