Horton

Re: Support logical replication of DDLs

Ajin Cherian <itsajin@gmail.com>

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From: Ajin Cherian <itsajin@gmail.com>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Peter Smith <smithpb2250@gmail.com>, vignesh C <vignesh21@gmail.com>, Zheng Li <zhengli10@gmail.com>, li jie <ggysxcq@gmail.com>, Dilip Kumar <dilipbalaut@gmail.com>, "houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>, Amit Kapila <amit.kapila16@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: 2023-02-06T07:07:40Z
Lists: pgsql-hackers

Commits

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  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.

Attachments

On Sat, Feb 4, 2023 at 12:27 AM Ajin Cherian <itsajin@gmail.com> wrote:
>
> There's a bug in this patch, where if there are multiple publications
> that publish ddls,
> then multiple event triggers will write multiple WAL records.
> This will result in duplicate ddls statements being published.
> This will also create multiple WAL records.
> To avoid this,
> I've added a fix in event_trigger invoking logic
> (EventTriggerCommonSetup()) patch-6,
> to check for duplicate publication ddl deparsing event trigger functions
> and if there are duplicates, only the first event trigger function is
> invoked and the rest ignored.
> This way, even if there are multiple publications that publish ddls,
> then only one set
> event trigger functions are invoked.
>

This patch caused a test case failure. Fixing this.

regards,
Ajin Cherian
Fujitsu Australia