| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Noah Misch <noah(at)leadboat(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Marco Nenciarini <marco(dot)nenciarini(at)2ndquadrant(dot)it>, Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCH] Logical decoding of TRUNCATE |
| Date: | 2020-12-20 23:54:31 |
| Message-ID: | CAH2-WzkKTQVWhz7ZEJKiv7c4emgAzPKL92ag64kZdbh2YKgDkw@mail.gmail.com |
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| Lists: | pgsql-general pgsql-hackers |
On Sun, Dec 20, 2020 at 3:13 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
> Hm. Do I understand correctly that this problem is hit solely because
> the parallel mode code relies on there already have been a transaction
> snapshot set, thus avoiding the error? And that the code normally only
> works because GetTransactionSnapshot() will already have been called
> somewhere, before EnterParallelMode()?
It seems unlikely that InitializeParallelDSM() was ever intended to be
run in a background worker.
--
Peter Geoghegan
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