Robert Haas <robertmhaas@gmail.com> writes:
>>> Well, you could create PQinitSSLExtended, but, as you say, the use
>>> case is pretty narrow...
>>> It would help if there were a PQgetLibraryVersion() function.
>>
>> Help how? There is nothing an app can do to work around the problem
>> AFAICS. Or if there were, we should just document it and not change
>> the code --- the use case for this is evidently too narrow to justify
>> complicating libpq's API even more.
> It would let you assert that you were running against a version of
> libpq that has the functionality that you are attempting to use, thus
> eliminating the risk of silent failure.
If that's all you want, then PQinitSSLExtended is a perfectly good
answer. Your app will fail to link if you try to use a library
version that hasn't got it.
I think documenting the workaround is a sufficient answer though.
regards, tom lane