There are a few error messages like this in the code:
/*
* We rely on being able to get the specific enum type from the calling
* expression tree. The generic type mechanism should have ensured that
* both are of the same type.
*/
enumtypoid = get_fn_expr_argtype(fcinfo->flinfo, 0);
if (enumtypoid == InvalidOid)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("could not determine actual enum
type")));
First, isn't this an internal error?
What is an actual enum type? And how should a user react if he got this
message? I would ask, "why not?".
--
Peter Eisentraut
http://developer.postgresql.org/~petere/
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