Horton

Re: [HACKERS] logical decoding of two-phase transactions

Peter Smith <smithpb2250@gmail.com>

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From: Peter Smith <smithpb2250@gmail.com>
To: Greg Nancarrow <gregn4422@gmail.com>
Cc: Amit Kapila <amit.kapila16@gmail.com>, Ajin Cherian <itsajin@gmail.com>, "tanghy.fnst@fujitsu.com" <tanghy.fnst@fujitsu.com>, vignesh C <vignesh21@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2021-06-11T08:34:48Z
Lists: pgsql-hackers

Attachments

Please find attached the latest patch set v85*

Differences from v84* are:

* Rebased to HEAD @ 10/June.

* This addresses all Greg's feedback comments [1] except.
- Skipped (1).iii. I think this line in the documentation is OK as-is
- Skipped (5). Amit wrote [2] that this comment is OK as-is
- Every other feedback has been fixed exactly (or close to) the suggestions.

KNOWN ISSUES: This v85 patch was built and tested using yesterday's
master, but due to lots of recent activity in the replication area I
expect it will be broken for HEAD very soon (if not already). I'll
rebase it again ASAP to try to keep it in working order.

----
[1] https://www.postgresql.org/message-id/CAJcOf-fPcpe21RciPRn_56FwO6K_B%2BVcTZ2prAv4xvAk4cqYiQ%40mail.gmail.com
[2] https://www.postgresql.org/message-id/CAA4eK1J2XBSbWXcf9P0z30op%2BGL-cUrrqJuy-kFVmbjS1fx-eQ%40mail.gmail.com

Kind Regards,
Peter Smith.
Fujitsu Australia

Commits

  1. Add prepare API support for streaming transactions in logical replication.

  2. Doc: minor improvements for logical replication protocol documentation.

  3. Fix test failure in 021_twophase.pl.

  4. Refactor to make common functions in proto.c and worker.c.

  5. Unify PostgresNode's new() and get_new_node() methods

  6. Fix potential buffer overruns in proto.c.

  7. Add support for prepared transactions to built-in logical replication.

  8. Refactor function parse_subscription_options.

  9. Allow enabling two-phase option via replication protocol.

  10. Don't use Asserts to check for violations of replication protocol.

  11. Improve psql tab completion for options of subcriptions and publications

  12. Rearrange logrep worker's snapshot handling some more.

  13. doc: Update information of new messages for logical replication.

  14. ALTER SUBSCRIPTION ... ADD/DROP PUBLICATION

  15. Allow pgoutput to send logical decoding messages.

  16. Refactor function parse_output_parameters.

  17. Avoid repeated decoding of prepared transactions after a restart.

  18. Fix an oversight in ReorderBufferFinishPrepared.

  19. Allow multiple xacts during table sync in logical replication.

  20. Fix replication of in-progress transactions in tablesync worker.

  21. Fix 'skip-empty-xacts' option in test_decoding for streaming mode.

  22. Use Enum for top level logical replication message types.

  23. Add support for streaming to built-in logical replication.

  24. Fix the logical streaming test.

  25. Implement streaming mode in ReorderBuffer.

  26. Extend the logical decoding output plugin API with stream methods.

  27. Store 2PC GID in commit/abort WAL recs for logical decoding