Shachar Shemesh <psql(at)shemesh(dot)biz> writes:
> Tom Lane wrote:
>> Sure it is, if you are using the V3 protocol (new in 7.4).
>> See the Describe message types.
> Are those exposed through the libpq interface?
No, because libpq doesn't really have any concept of prepared statements.
It would probably make sense to add some more API to libpq to allow
creation and interrogation of prepared statements, but no one's got
around to that yet.
regards, tom lane