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	Tue, 2 Jul 2019 11:23:30 -0400
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Rui Hai Jiang <ruihaij@gmail.com>
cc: Robert Haas <robertmhaas@gmail.com>,
        PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: TopoSort() fix
In-reply-to: 
 <CAEri+mLd3bpHLyW+a9pSe1y=aEkeuJpwBSwvo-+m4n7-ceRmXw@mail.gmail.com>
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 <CAEri+mLd3bpHLyW+a9pSe1y=aEkeuJpwBSwvo-+m4n7-ceRmXw@mail.gmail.com>
Comments: In-reply-to Rui Hai Jiang <ruihaij@gmail.com>
	message dated "Tue, 02 Jul 2019 22:47:32 +0800"
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Rui Hai Jiang <ruihaij@gmail.com> writes:
> I think I found an issue in the TopoSort() function.

This indeed seems like a live bug introduced by a1c1af2a.
Robert?

			regards, tom lane