> I do think it would be a good idea if the pg_dumpall from the new release
> looked for these now-reserved column names and warned the user. You could
> then at least know where problems will occur. In upgrades from d/b versions
> which support ALTER TABLE xxx RENAME COLUMN yyy TO zzz, you would actually
> be able to do something about it before re-dumping...
pg_dumpall is just a shell script. You would have to do it in pg_dump.
I hesistate to meddle with that code unless I have good reason for it.
We could have a separate function that scans pg_attribute looking for
bad column names.
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