Horton

Re: Large expressions in indexes can't be stored (non-TOASTable)

Nathan Bossart <nathandbossart@gmail.com>

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From: Nathan Bossart <nathandbossart@gmail.com>
To: Amit Kapila <amit.kapila16@gmail.com>
Cc: Michael Paquier <michael@paquier.xyz>, Alexander Lakhin <exclusion@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, "Jonathan S. Katz" <jkatz@postgresql.org>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-04-04T14:28:27Z
Lists: pgsql-hackers 
On Fri, Apr 04, 2025 at 05:16:43PM +0530, Amit Kapila wrote:
> Can we dodge adding this push call if we restrict the length of the
> origin name to some reasonable limit like 256 or 512 and avoid the
> need of toast altogether?

We did consider just removing pg_replication_origin's TOAST table earlier
[0], but we decided against it at that time.  Maybe it's worth
reconsidering...

[0] https://postgr.es/m/ZvOMBhlb5zrBCG5p%40paquier.xyz

-- 
nathan

Commits

  1. Ensure we have a snapshot when updating various system catalogs.

  2. Remove pg_replication_origin's TOAST table.

  3. Restrict password hash length.

  4. Ensure we have a snapshot when updating pg_index entries.

  5. Add TOAST table to pg_index.

  6. Add toast tables to most system catalogs