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Re: Column Filtering in Logical Replication

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

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From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: Tomas Vondra <tomas.vondra@enterprisedb.com>, Amit Kapila <amit.kapila16@gmail.com>, Peter Eisentraut <peter.eisentraut@enterprisedb.com>, "houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>, Rahila Syed <rahilasyed90@gmail.com>, Peter Smith <smithpb2250@gmail.com>, pgsql-hackers@postgresql.org
Date: 2021-12-30T23:32:29Z
Lists: pgsql-hackers

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On 2021-Dec-30, Justin Pryzby wrote:

Thank you!  I've incorporated your proposed fixes.

> > +		/*
> > +		 * Even if the user listed all columns in the column list, we cannot
> > +		 * allow a column list to be specified when REPLICA IDENTITY is FULL;
> > +		 * that would cause problems if a new column is added later, because
> > +		 * that could would have to be included (because of being part of the
> 
> could would is wrong

Hah, yeah, this was "that column would".

> > + * Gets a list of OIDs of all column-partial publications of the given
> > + * relation, that is, those that specify a column list.
> 
> I would call this a "partial-column" publication.

OK, done that way.

-- 
Álvaro Herrera              Valdivia, Chile  —  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. Doc: Explain about Column List feature.

  2. Doc: fix column list vs. replica identity rules.

  3. Prohibit combining publications with different column lists.

  4. Fix the check to limit sync workers.

  5. Wait for subscription to sync in t/031_column_list.sql

  6. Move prattrs to the pg_publication_rel section in docs

  7. Allow specifying column lists for logical replication

  8. Fix row filters with multiple publications

  9. Fix publish_as_relid with multiple publications

  10. Add some additional tests for row filters in logical replication.

  11. Add index on pg_publication_rel.prpubid

  12. Avoid using DefElemAction in AlterPublicationStmt

  13. Small cleanups related to PUBLICATION framework code

  14. Add PublicationTable and PublicationRelInfo structs

  15. Fix various concurrency issues in logical replication worker launching