Hello,
Oracle has MINUS keyword used instead of EXCEPT.
I know that this sucks, but I like sometimes to test Oracle queries on
PostgreSQL (I should use Oracle...).
Here is a patch to make minus working same way as except. I am not sure it is
complety correct (I am not very big guru in grammars... Just wrote draft
version of Oberon-2 -> C++ translator). Please someone more expirienced check
that all is fine.
BTW, I am not ask for inclusion in current tree. I just create a patch, and
if someone need it it can be picked up.
--
Sincerely Yours,
Denis Perchine
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