plperl function to return nulls

Brent Wood <b.wood@xxxxxxxxxx> · Mon, 19 Sep 2005 10:52:23 +1200 (NZST)

I can't find a reference in the docs for this...

I have a plperl function returning an int. The int is returned as the
result of a system call.

It is set to return a null if one of the inputs is null, but I can't see
how to return a null if the result is indeterminate. The function
currently returns a 0 instead.

How do I stick an if in the function to return a null where appropriate?

Thanks,

  Brent Wood

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