The Report says that the functions of a mutually recursive group must
all have the same context. It's a bit of a funny rule, and it's more
restrictive than absolutely necessary, but that's what Haskell says. I
could work to lift the restriction in GHC, but it only seems to come up
in toy
promotional-plug
Actually... there is a native Oracle driver, or rather, one that uses the
OCI. It's usable, but certainly not complete.
http://cvs.sourceforge.net/viewcvs.py/haskell-libs/libs/takusen/src/
However, I've only tested it with bog-standard ASCII Cstrings (my NLS_LANG
setting
Let me restate:
gfindtype's declaration should be
gfindtype :: (Data x, Typeable y) = x - Maybe y
Jim
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