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Re: Patch: dumping tables data in multiple chunks in pg_dump

Hannu Krosing <hannuk@google.com>

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From: Hannu Krosing <hannuk@google.com>
To: David Rowley <dgrowleyml@gmail.com>
Cc: Zsolt Parragi <zsolt.parragi@percona.com>, Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Nathan Bossart <nathandbossart@gmail.com>
Date: 2026-01-28T21:33:48Z
Lists: pgsql-hackers 
On Wed, Jan 28, 2026 at 10:27 PM Hannu Krosing <hannuk@google.com> wrote:
>
> Hi David
>
> About documentation :
>
> On Fri, Jan 23, 2026 at 3:15 AM David Rowley <dgrowleyml@gmail.com> wrote:
> >
> > Aside from that, nothing in the documentation mentions that this is
> > for "heap" tables only.

On re-reading I finally understood what you meant - that the
chunking applies to only standard postgreSQL TAM called "heap"

Will add that as well. Would something like work

"This flag applies only to tables that use the standard PostgreSQL
Table Access Method (TAM) called "heap".
The tables that are using any custom TAM  are dumped as if
--max-table-segment-pages was not set."

---
Hannu