On Thu, 2009-08-06 at 13:15 -0400, Merlin Moncure wrote:
> in 8.4 you can (and should) do:
> WHERE old = new
I couldn't get that to work in a rule.
> IF NEW != OLD THEN -- 8.4 syntax
Does this work correctly in the case of NULLs? It looks like it does,
but that seems strange, because ROW(1, NULL) = ROW(1, NULL) evaluates to
NULL. Where is this documented?
Regards,
Jeff Davis
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