Dear Hackers, One of my customers suggested creating a function that could return the server's hostname.
After a quick search, we found [this Wiki page]( https://wiki.postgresql.org/wiki/Pg_gethostname) referring to [that extension](https://github.com/theory/pg-hostname/) from David E. Wheeler. I used shamelessly the idea and created a working proof of concept: - the function takes no argument and returns the hostname or a null value if any error occurs - the function was added to the network.c file because it makes sense to me to have that near the inet_server_addr() and inet_server_port() functions. - I didn't add any test as the inet functions are not tested either. If you think my design is good enough, I'll go ahead and port/test that function for Windows. Have a nice day, Lætitia
pg_servername_function_v1.patch
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