On Feb17, 2011, at 01:14 , Oliver Jowett wrote:
> Any suggestions about how the JDBC driver can express the query to get
> the behavior that it wants? Specifically, the driver wants to call a
> particular function with N OUT or INOUT parameters (and maybe some other
> IN parameters too) and get a resultset with N columns back.
There's no sane way to do that, I fear. You could of course look up the
function definition in the catalog before actually calling it, but with
overloading and polymorphic types finding the right pg_proc entry seems
awfully complex.
Your best option is probably to just document this caveat...
best regards,
Florian Pflug