From: Tom Lane <tgl@sss.pgh.pa.us>
To: Noah Misch <noah@leadboat.com>
Cc: pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Consistently test for in-use shared memory.
Date: Mon, 15 Apr 2019 20:52:36 -0400
Message-ID: <28362.1555375956@sss.pgh.pa.us> (raw)
In-Reply-To: <20190416005019.GA3296237@rfd.leadboat.com>
References: <E1hFBbx-0002OI-Pb@gemulon.postgresql.org>
<26478.1555373328@sss.pgh.pa.us>
<20190416005019.GA3296237@rfd.leadboat.com>
Noah Misch <noah@leadboat.com> writes:
> On Mon, Apr 15, 2019 at 08:08:48PM -0400, Tom Lane wrote:
>> I interpret this as "the single-user backend exited before we could stuff
>> 'SELECT 1 + 1' down the pipe to it, and the Perl script is not expecting
>> to get a write failure there".
> Perhaps I should write the 'SELECT 1 + 1' to a regular file and redirect input
> from that file.
Yeah, that was the first idea that occurred to me as well.
Kinda grotty, but ...
Another idea is to shove the problem off on a sub-shell, that is run
echo SELECT 1 + 1 | postgres --single ...
regards, tom lane
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To: pgsql-committers@postgresql.org
Cc: tgl@sss.pgh.pa.us, noah@leadboat.com, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Consistently test for in-use shared memory.
In-Reply-To: <28362.1555375956@sss.pgh.pa.us>
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