Re: SKIP LOCKED assert triggered

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
Cc: Simon Riggs <simon(dot)riggs(at)enterprisedb(dot)com>, "Bossart, Nathan" <bossartn(at)amazon(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SKIP LOCKED assert triggered
Date: 2022-01-04 16:15:30
Message-ID: 4030482.1641312930@sss.pgh.pa.us
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Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
> Pushed, thanks Simon for reporting this problem.

Umm ...

Assert(TM_WouldBlock || !(tuple->t_data->t_infomask & HEAP_XMAX_INVALID));

AFAICS, this assertion condition is constant-true,
because TM_WouldBlock is a nonzero constant. Perhaps you meant

Assert(result == TM_WouldBlock || !(tuple->t_data->t_infomask & HEAP_XMAX_INVALID));

?

I'd be inclined to format it more like the adjacent Assert, too.

regards, tom lane

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