Tom Lane wrote:
>
> More to the point, I think we have to assume old-style interface if we
> see ... LANGUAGE 'C' with no other decoration, because any other
> assumption is guaranteed to break all existing user-defined functions.
Just successfully loading an old-style C function doesn't guarantee that it works anyway. I pointed out before
thatthe changes due to TOAST require each function that takes arguments of varlen types to expect toasted
values. Worst case a dump might reload and anything works fine, but a month later the first toasted value appears
and the old-style C function corrupts the data without a single warning.
We need to WARN, WARN and explicitly WARN users of selfmade C functions about this in any possible place!
Jan
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