On Sat, May 27, 2017 at 6:48 AM, Petr Jelinek <petr.jeli...@2ndquadrant.com>

> Actually, I guess it's the pid 47457 (COPY process) who is actually
> running the xid 73322726. In that case that's the same thing Masahiko
> Sawada reported [1].

Related, but not the same.  It would be nice if they didn't block, but if
they do have to block, shouldn't it wait on a semaphore, rather than doing
a tight loop?  It looks like maybe a latch didn't get reset when it should
have or something.

> https://www.postgresql.org/message-id/flat/CAD21AoC2KJdavS7MFffmSsRc1dn3V
> g_0xmuc%3DUpBrZ-_MUxh-Q%40mail.gmail.com



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