On Tue, 2011-01-11 at 07:14 -0500, Noah Misch wrote:
> On Tue, Jan 11, 2011 at 09:24:46AM +0000, Simon Riggs wrote:
> > I have a concern that by making the ALTER TABLE more complex that we
> > might not be able to easily tell if a rewrite happens, or not.
What about add EXPLAIN support to it, then whoever wants to know what it
does should just run explain on it. I have no idea how hard that would
be to implement and if it makes sense at all, but I sure would like to
see a plan for DDLs too to estimate how long it would take.
Cheers,
Csaba.