Hello
How can I determine the pg_class oid of the argument type in a
polymorphic C function when it's called with a table row?
PG_FUNCTION_INFO_V1(myfunc);
Datum myfunc(PG_FUNCTION_ARGS)
{
Oid arg_type = get_fn_expr_argtype(fcinfo->flinfo, 0);
elog(ERROR, "arg_type %d", arg_type);
PG_RETURN_NULL();
}
select myfunc(mytable) from mytable;
arg_type 65754
select 'mytable'::regclass::oid
65752
I expected them to be equal.
What gives?
For other table the results are 65783 vs 65785.
I'm running v 8.4.3
Thanks,
Bogdan
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