Re: Support logical replication of DDLs

Zheng Li <zhengli10@gmail.com>

From: Zheng Li <zhengli10@gmail.com>

To: Euler Taveira <euler@eulerto.com>

Cc: Amit Kapila <amit.kapila16@gmail.com>, japin <japinli@hotmail.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Dilip Kumar <dilipbalaut@gmail.com>, rajesh.rs0541@gmail.com, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2022-04-11T17:36:42Z

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 →

Add a run_as_owner option to subscriptions.
- 482675987bcd 16.0 cited
Refactor pgoutput_change().
- da324d6cd45b 16.0 cited
Print the correct aliases for DML target tables in ruleutils.
- df931e9ab35b 11.20 landed
- c8a5f1685fb7 15.3 landed
- 4efb4f0d4878 13.11 landed
- 3dd287c14fac 12.15 landed
- 393430f57544 16.0 landed
- 14345f3c6a7b 14.8 landed
Fix object identity string for transforms
- 9a312562314a 16.0 landed
Add grantable MAINTAIN privilege and pg_maintain role.
- 60684dd834a2 16.0 cited
Get rid of recursion-marker values in enum AlterTableType
- 840ff5f451cd 16.0 cited
Release cache tuple when no longer needed
- ed0fbc8e5ac9 15.0 cited
Empty search_path in logical replication apply worker and walsender.
- 11da97024abb 14.0 cited
Refactor format_type APIs to be more modular
- a26116c6cbf4 11.0 cited
Use wrappers of PG_DETOAST_DATUM_PACKED() more.
- 3a0d473192b2 10.0 cited

> I'm planning to work on the initial DDL replication. I'll open a new thread as
> soon as I write a design for it. Just as an example, the pglogical approach is
> to use pg_dump behind the scenes to provide the schema [1]. It is a reasonable
> approach but an optimal solution should be an API to provide the initial DDL
> commands. I mean the main point of this feature is to have an API to create an
> object that the logical replication can use it for initial schema
> synchronization. This "DDL to create an object" was already discussed in the
> past [2].

Nice! I think automatic initial schema synchronization for replication
is a very useful feature.

Regards,
Zheng