Re: On conflict update & hint bits

From: Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>
To: Peter Geoghegan <pg(at)heroku(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: On conflict update & hint bits
Date: 2016-09-30 16:40:05
Message-ID: 57EE9565.9010100@postgrespro.ru
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On 30.09.2016 19:37, Peter Geoghegan wrote:
> On Fri, Sep 30, 2016 at 5:33 PM, Konstantin Knizhnik
> <k(dot)knizhnik(at)postgrespro(dot)ru> wrote:
>> Later we try to check tuple visibility:
>>
>> ExecCheckHeapTupleVisible(estate, &tuple, buffer);
>>
>> and inside HeapTupleSatisfiesMVCC try to set hint bit.
> So, you're using repeatable read or serializable isolation level?
>
Repeatable read.

--
Konstantin Knizhnik
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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