| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Race condition in recovery? |
| Date: | 2021-06-12 17:54:59 |
| Message-ID: | 2348579.1623520499@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> On 6/12/21 1:07 PM, Tom Lane wrote:
>> OK. But it makes me itch a bit that this one wait-for-wal-to-be-
>> processed query looks different from all the other ones.
> I'm happy to bring the other two queries that look like this into line
> with this one if you like.
I see a lot more than two --- grepping for poll_query_until with
a test involving a LSN comparison finds a bunch. Are we sure that
there are only three in which the LSN could be null? How much
does it really matter if it is?
regards, tom lane
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