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Re: ALTER TABLE SET ACCESS METHOD on partitioned tables

Alvaro Herrera <alvherre@alvh.no-ip.org>

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From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Michael Paquier <michael@paquier.xyz>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Justin Pryzby <pryzby@telsasoft.com>, Alexander Lakhin <exclusion@gmail.com>, Peter Eisentraut <peter@eisentraut.org>, Soumyadeep Chakraborty <soumyadeep2007@gmail.com>, Zhihong Yu <zyu@yugabyte.com>, pgsql-hackers@postgresql.org, Ashwin Agrawal <ashwinstar@gmail.com>, vanjared@vmware.com
Date: 2024-04-17T07:50:02Z
Lists: pgsql-hackers 
On 2024-Apr-17, Alvaro Herrera wrote:

> Hmm, cannot we simply add a USING clause to the CREATE TABLE command for
> partitioned tables?  That would override the
> default_table_access_method, so it should give the correct result, no?

Ah, upthread you noted that pg_restore-time --no-table-access-method
needs to be able to elide it, so a dump-time USING clause doesn't work.

I think it's easy enough to add a "bool ispartitioned" to TableInfo and
use an ALTER TABLE or rely on the GUC depending on that -- seems easy
enough.

-- 
Álvaro Herrera         PostgreSQL Developer  —  https://www.EnterpriseDB.com/

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 information about access method for partitioned relations in \dP+

  2. Fix dumps of partitioned tables with table AMs

  3. Don't use the pg_am system catalog in new test

  4. ALTER TABLE: rework determination of access method ID

  5. Allow specifying an access method for partitioned tables

  6. Review wording on tablespaces w.r.t. partitioned tables

  7. Add support for DEFAULT in ALTER TABLE .. SET ACCESS METHOD

  8. Update comment of AlterTableCmd->name in parsenodes.h