> Reading the spec, I don't see any mention of this either way, but the
> standard usage of most other drivers is to make a call to the server
> to get the information, the logic being that if someone already knows
> the status of the parameters, they would most likely not ask for the
> metadata.

This is current limitation of JayBird. In theory we can select information
about the procedure params from system tables, but current version does not
do this. Actually I did not even though about this use case.

Any volunteers to implement this feature?

Roman