Re: Support logical replication of DDLs

Amit Kapila <amit.kapila16@gmail.com>

From: Amit Kapila <amit.kapila16@gmail.com>
To: li jie <ggysxcq@gmail.com>
Cc: vignesh C <vignesh21@gmail.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Zheng Li <zhengli10@gmail.com>, Ajin Cherian <itsajin@gmail.com>, Dilip Kumar <dilipbalaut@gmail.com>, "houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>, Peter Smith <smithpb2250@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>, Japin Li <japinli@hotmail.com>, rajesh singarapu <rajesh.rs0541@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-12-09T10:36:05Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Add a run_as_owner option to subscriptions.

  2. Refactor pgoutput_change().

  3. Print the correct aliases for DML target tables in ruleutils.

  4. Fix object identity string for transforms

  5. Add grantable MAINTAIN privilege and pg_maintain role.

  6. Get rid of recursion-marker values in enum AlterTableType

  7. Release cache tuple when no longer needed

  8. Empty search_path in logical replication apply worker and walsender.

  9. Refactor format_type APIs to be more modular

  10. Use wrappers of PG_DETOAST_DATUM_PACKED() more.

On Fri, Dec 9, 2022 at 8:57 AM li jie <ggysxcq@gmail.com> wrote:
>
> It is worth considering whether temporary objects, such as tables,
> indexes, and sequences,
> should be replicated to  the subscriber side.
>
> Like temp tables, different sessions create their own temp tables.
> If they are all transferred to the subscriber side, there will
> inevitably be errors,
>  because there is only one subscription session.
>
> I think temporary objects should not be part of replication because
> they are visible within the session.
>  replicate them over would not make them visible to the user and would
> not be meaningful.
>

I also don't think we should replicate temp tables. We anyway don't
replicate their data.

-- 
With Regards,
Amit Kapila.