[HACKERS] PG_FREE_IF_COPY()

[John Hansen]

Given the following snippet:

        HeapTupleHeader     tuple;
        Datum               temp;
        bool                      isnull;
        
        tuple = PG_GETARG_HEAPTUPLEHEADER(0);
        temp  = GetAttributeByName(tuple, "data", &isnull);


When using this for a btree operator functions, you need to
PG_FREE_IF_COPY(?,?);

Which of the above parameters need I free?

tuple, or temp,.... Or both?

... John

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