Bruce Momjian writes:
> You can exclusively lock the table, then do a heap_getnext() scan over
> the entire table, remove the dropped column, do a heap_insert(), then a
> heap_delete() on the current tuple,
Wow, that almost seems to easy to be true. I never thought that having
tuples of different structures in the table at the same time would be
possible. If so then I don't see a reason why this would be too hard to
do.
--
Peter Eisentraut Sernanders väg 10:115
peter_e@gmx.net 75262 Uppsala
http://yi.org/peter-e/ Sweden