Re: real/float example for testlibpq3

On Wed, Mar 30, 2022 at 01:16:37PM -0400, Greg Stark wrote:
> On Mon, 28 Feb 2022 at 17:50, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >
> > Chapman Flack <chap(at)anastigmatix(dot)net> writes:
> > > In the current state of affairs, what's considered the ur-source of that
> > > information?
> >
> > The source code for the type's send/receive functions :-(. One could
> > wish for something better, but no one has stepped up to produce such
> > documentation.
>
> Fwiw the client library I heard of attempting to have good binary mode
> support was the Crystal language client
> https://github.com/will/crystal-pg. I think he was aiming for full
> coverage of the built-in data types. That might make a good reference
> implementation to write up documentation from. He probably uncovered
> some corner cases in development that one might not find from just
> inspection of the server code.

Checking in for quick feedback to see if this refactor makes sense.

I've created a function for each data type with the idea that an example
for handling a specific data type can be more easily reviewed by looking
in a single place.

I've added examples for REAL, TIMESTAMP WITHOUT TIME ZONE, and BOOLEAN
to try to illustrate how testlibpq3.sql and testlibpq3.c will grow if
this is a good way to go.

Regards,
Mark