Re: Re: Parallel scan with SubTransGetTopmostTransaction assert coredump

Pavel Borisov <pashkin.elfe@gmail.com>

From: Pavel Borisov <pashkin.elfe@gmail.com>

To: Pengchengliu <pengchengliu@tju.edu.cn>

Cc: Greg Nancarrow <gregn4422@gmail.com>, Andres Freund <andres@anarazel.de>, PostgreSQL-development <pgsql-hackers@postgresql.org>

Date: 2021-05-18T08:18:15Z

Lists: pgsql-hackers

I've also seen the reports of the same Assert(TransactionIdFollowsOrEquals(xid,
TransactionXmin)) with a subsequent crash in a parallel worker in
PostgreSQL v11-based build, Though I was unable to investigate deeper and
reproduce the issue. The details above in the thread make me think it is a
real and long-time-persistent error that is surely worth to be fixed.

-- 
Best regards,
Pavel Borisov

Postgres Professional: http://postgrespro.com <http://www.postgrespro.com>

Commits

Fix broken snapshot handling in parallel workers.
- 96f6ef9fe451 10.19 landed
- 198cf81e2c64 11.14 landed
- f4b77e82ebf4 12.9 landed
- bc062cb93823 13.5 landed
- 11c1239881b3 14.0 landed
- a780b2fcce6c 15.0 landed
Doc: move some catalogs.sgml entries to the right place.
- 713a431c781f 14.0 cited
Stamp 13.2.
- 3fb4c75e857a 13.2 cited
Create an infrastructure for parallel computation in PostgreSQL.
- 924bcf4f16d5 9.5.0 cited