I submitted the following patch to the patches list almost two weeks
ago, and it hasn't yet seen any comment, either positive or negative.
<http://lists.slony.info/pipermail/slony1-patches/2007-April/000008.html>

Later this week, I'll plan to apply this patch to CVS HEAD, if there
are no objections, and I will also see to modifying the documentation
to ensure it is mentioned that in the new version, TABLE ADD KEY no
longer works.

And I'll ask around about some suggested procedures for detecting and
removing instances of this usage from existing clusters.  (A coworker
has been working on that this very week...)
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