| From: | "David E(dot) Wheeler" <david(at)kineticode(dot)com> |
|---|---|
| To: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Cc: | Brendan Jurd <direvus(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Neil Conway <neilc(at)samurai(dot)com> |
| Subject: | Re: Mysterious Bus Error with get_fn_expr_argtype() |
| Date: | 2008-09-02 17:50:32 |
| Message-ID: | DF7DA6D4-7F27-40B6-9A8E-1582B7934A5C@kineticode.com |
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| Lists: | pgsql-hackers |
On Sep 2, 2008, at 10:43, David E. Wheeler wrote:
> Looks like regtype displays as an integer. So how about
> pg_regtypeof() and pg_typeof()?
Sorry, make that:
PG_FUNCTION_INFO_V1(pg_regtypeof);
Datum
pg_regtypeof(PG_FUNCTION_ARGS)
{
PG_RETURN_OID(get_fn_expr_argtype(fcinfo->flinfo, 0));
}
PG_FUNCTION_INFO_V1(pg_typeof);
Datum
pg_typeof(PG_FUNCTION_ARGS)
{
Oid typeoid;
typeoid = get_fn_expr_argtype(fcinfo->flinfo, 0);
if (typeoid == InvalidOid) {
ereport(
ERROR, (
errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("could not determine data type of argument to
pg_typeof()")
)
);
}
PG_RETURN_DATUM(DirectFunctionCall1(textin,
CStringGetDatum(format_type_be(typeoid))));
}
Best,
David
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