Re: OPAQUE and 7.2-7.3 upgrade

At 11:27 PM 12/09/2002 -0400, Tom Lane wrote:
>You mean hardwire the names "plpgsql_language_handler", etc, as being
>ones that should return such-and-such instead of OPAQUE?

No; I actually mean modifying the function definition macros
(PG_FUNCTION_INFO etc) to allow function definitions to (optionally)
include return type (at least for builtin types with fixed IDs) - they
already define the invocation method etc, so it does not seem a big stretch
to add a return type ID.

Not all functions would need to use these, but when a user defines a
function they could be checked. And in the case of the plpgsql handlers,
they would of course be defined.

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