Horton

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

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Nathan Bossart <nathandbossart@gmail.com>
Cc: Nisha Moond <nisha.moond412@gmail.com>, Euler Taveira <euler@eulerto.com>, Michael Paquier <michael@paquier.xyz>, Amit Kapila <amit.kapila16@gmail.com>, Alexander Lakhin <exclusion@gmail.com>, "Jonathan S. Katz" <jkatz@postgresql.org>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-04-23T21:33:41Z
Lists: pgsql-hackers 
Nathan Bossart <nathandbossart@gmail.com> writes:
> Here is a new version of the patch with this change.

I don't see any comments in this patch that capture the real
reason for removing pg_replication_origin's TOAST table,
namely (IIUC) that we'd like to be able to access that catalog
without a snapshot.  I think it's important to record that
knowledge, because otherwise somebody is likely to think they
can undo this change for $whatever-reason.

			regards, tom lane

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