Horton

Re: Add bump memory context type and use it for tuplesorts

John Naylor <johncnaylorls@gmail.com>

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From: John Naylor <johncnaylorls@gmail.com>
To: David Rowley <dgrowleyml@gmail.com>
Cc: Matthias van de Meent <boekewurm+postgres@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, Tomas Vondra <tomas.vondra@enterprisedb.com>, Andres Freund <andres@anarazel.de>, PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
Date: 2024-04-07T10:05:36Z
Lists: pgsql-hackers 
On Sat, Apr 6, 2024 at 7:37 PM David Rowley <dgrowleyml@gmail.com> wrote:
>
 I'm planning on pushing these, pending a final look at 0002 and 0003
> on Sunday morning NZ time (UTC+12), likely in about 10 hours time.

+1

I haven't looked at v6, but I've tried using it in situ, and it seems
to work as well as hoped:

https://www.postgresql.org/message-id/CANWCAZZQFfxvzO8yZHFWtQV%2BZ2gAMv1ku16Vu7KWmb5kZQyd1w%40mail.gmail.com

Commits

  1. Update mmgr's README to mention BumpContext

  2. Push dedicated BumpBlocks to the tail of the blocks list

  3. Improve test coverage in bump.c

  4. Fix incorrect KeeperBlock macro in bump.c

  5. Use bump memory context for tuplesorts

  6. Introduce a bump memory allocator

  7. Enlarge bit-space for MemoryContextMethodID