Re: 64-bit API for large objects

Jeremy Drake <pgsql(at)jdrake(dot)com> writes:
> 2) The lo_*64, in order to be convenient from the client end, have
> functions added to libpq as the existing lo_* functions. The client side
> of libpq did not previously know anything about int64 or how to
> send/receive them. I added an include of postgres-fe.h (which according
> to the comment in that file looks like it should go there) so int64 would
> be defined,

Unfortunately that's completely unacceptable from a namespace-pollution
point of view.

The real problem here is that int64 isn't a well-defined portable
datatype, and so it's going to be very hard to export these functions in
a way that won't break on different platforms, applications compiled
with a different compiler than libpq was, etc.

For that matter, we can't even guarantee that they work at all: not all
platforms even *have* int64 types. We have so far avoided putting any
fundamental dependencies on int64 arithmetic into the system, and I'm a
bit worried that this patch will break LO support entirely on platforms
that don't have working int64 arithmetic.

regards, tom lane