Bruce Momjian <br...@momjian.us> writes:
> pg_ctl.c::test_postmaster_connection() has some fragile code that tries
> to detect the server port number by looking in the pg_ctl -o string,

It may be fragile, but it works; or at least I've not heard complaints
about it lately.

> I think a simpler solution would be to look in postmaster.pid:
> pg_ctl already knows the data directory.  If the file is missing, the
> server is not running.  If the file exists, the first number on the last
> line, divided by 1000, is the port number.

That's somewhere between fragile and outright wrong.

                        regards, tom lane

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