Is it necessary to pfree json tuples?

[exedealer]

pg_json_decoding/pg_json_decoding.c

Lines 93 to 96 in a447013

	Datum tupdat = heap_copy_tuple_as_datum(tuple, tupdesc);
	Datum tupjson = DirectFunctionCall1(row_to_json, tupdat);
	char *tupjsonstr = TextDatumGetCString(tupjson);
	appendStringInfoString(out, tupjsonstr);