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0a11e1063d
to the left of the actual bool value. While in most cases there won't be any, our support for old-style user-defined functions violates the C spec to the extent of calling functions that might return char or short through a function pointer declared to return "char *", which we then coerce to Datum. It is not surprising that the result might contain garbage high-order bits ... what is surprising is that we didn't see such cases long ago. Per report from Magnus. This is a back-patch of a change that was made in HEAD almost exactly a year ago. I had refrained from back-patching at the time, but now we find that this is *necessary* for contrib to work with gcc 4.3.