The Hermit Hacker wrote:
>
> > numbered. How does a missing attribute get handled for new rows?
> > My guess is that we have to keep this thing around forever. Can you
> > imagine having all those user apps tha query pg_attribute supress that
> > column. Sound like too much work to me.
>
> I *still* think the best is the "re-write the table in place" method
> ... we already have most of the logic, I would think, from VACUUM ...
It is much safer with vacuum, as there is no way for vacuum to crash and have
two different tuple formats left behind (i hope ;-p)
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Hannu
