I have tested my function some more and found out that it is while i am trying
to return it crashes. If i use a standard type like float it works, but with
my own type alignres it doesn't. I have used this type as return value in
other functions before, but not in set returning functions.
When returning a float value, SRF_RETURN_NEXT(funcctx, Float8GetDatum(result))
is used. What am i supposed to use for my own type to get the datum value? I
have tried using PointerGetDatum(result) but then the function crashes.
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