Hi,
how can I write a SQL extention in C, which works with "unusual" data
types?
I've managed to write a c function, which accepts int4 as input parameter
and has got int4 as output parameter.
My problem now is, that I want to use a char(10) as input parameter, since
the input for that function is a colum, which is a char(10) type.
How do I do this?
(In the manuals, it is said, one should create an own data type in C - I've
already done this, called it "char10", but of course, I cannot use this
data type in SQL...)
Thank you very much
Christoph
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