Re: Parallel scan with SubTransGetTopmostTransaction assert coredump

Pavel Borisov <pashkin.elfe@gmail.com>

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

To: Greg Nancarrow <gregn4422@gmail.com>, Robert Haas <robertmhaas@gmail.com>

Cc: Maxim Orlov <m.orlov@postgrespro.ru>, Michael Paquier <michael@paquier.xyz>, Pengchengliu <pengchengliu@tju.edu.cn>, Andres Freund <andres@anarazel.de>, PostgreSQL-development <pgsql-hackers@postgresql.org>

Date: 2021-06-24T13:09:09Z

Lists: pgsql-hackers

By the way in the initial discussion on parallel infrastructure
https://www.postgresql.org/message-id/20150208002027.GH9201%40alap3.anarazel.de
I've seen a proposal to set the worker's PGXACT->xmin
to be the minimum of the top transaction id and the snapshots.

-- 
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