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

Peter Smith <smithpb2250@gmail.com>

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From: Peter Smith <smithpb2250@gmail.com>

To: Ajin Cherian <itsajin@gmail.com>

Cc: Amit Kapila <amit.kapila16@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>

Date: 2020-10-16T06:20:23Z

Lists: pgsql-hackers

Attachments

v10-0001-Support-2PC-txn-base.patch (application/octet-stream) patch v10-0001
v10-0002-Support-2PC-txn-backend-and-tests.patch (application/octet-stream) patch v10-0002
v10-0003-Support-2PC-txn-pgoutput.patch (application/octet-stream) patch v10-0003

Hello Ajin,

The v9 patches provided support for two-phase transactions for NON-streaming.

Now I have added STREAM support for two-phase transactions, and bumped
all patches to version v10.

(The 0001 and 0002 patches are unchanged. Only 0003 is changed).

--

There are a few TODO/FIXME comments in the code highlighting parts
needing some attention.

There is a #define DEBUG_STREAM_2PC useful for debugging, which I can
remove later.

All the patches have some whitespaces issues when applied. We can
resolve them as we go.

Please let me know any comments/feedback.

Kind Regards
Peter Smith.
Fujitsu Australia.

Commits

Add prepare API support for streaming transactions in logical replication.
- 63cf61cdeb7b 15.0 landed
Doc: minor improvements for logical replication protocol documentation.
- a5cb4f9829fb 15.0 cited
Fix test failure in 021_twophase.pl.
- eaf5321c3524 15.0 landed
Refactor to make common functions in proto.c and worker.c.
- 91f9861242cd 15.0 landed
Unify PostgresNode's new() and get_new_node() methods
- 201a76183e20 15.0 cited
Fix potential buffer overruns in proto.c.
- 01c3adcdd85f 15.0 landed
Add support for prepared transactions to built-in logical replication.
- a8fd13cab0ba 15.0 cited
Refactor function parse_subscription_options.
- 8aafb0261675 15.0 cited
Allow enabling two-phase option via replication protocol.
- cda03cfed6b8 15.0 cited
Don't use Asserts to check for violations of replication protocol.
- fe6a20ce54cb 14.0 cited
Improve psql tab completion for options of subcriptions and publications
- d08237b5b494 14.0 cited
Rearrange logrep worker's snapshot handling some more.
- 3a09d75b4f6c 14.0 cited
doc: Update information of new messages for logical replication.
- 15c1a9d9cb76 14.0 cited
ALTER SUBSCRIPTION ... ADD/DROP PUBLICATION
- 82ed7748b710 14.0 cited
Allow pgoutput to send logical decoding messages.
- ac4645c0157f 14.0 cited
Refactor function parse_output_parameters.
- 531737ddad21 14.0 cited
Avoid repeated decoding of prepared transactions after a restart.
- 8bdb1332eb51 14.0 cited
Fix an oversight in ReorderBufferFinishPrepared.
- ade89ba5f408 14.0 landed
Allow multiple xacts during table sync in logical replication.
- ce0fdbfe9722 14.0 cited
Fix replication of in-progress transactions in tablesync worker.
- 0926e96c4934 14.0 cited
Fix 'skip-empty-xacts' option in test_decoding for streaming mode.
- 9653f24ad830 14.0 cited
Use Enum for top level logical replication message types.
- 644f0d7cc9c2 14.0 cited
Add support for streaming to built-in logical replication.
- 464824323e57 14.0 cited
Fix the logical streaming test.
- 82a0ba7707e0 14.0 cited
Implement streaming mode in ReorderBuffer.
- 7259736a6e5b 14.0 cited
Extend the logical decoding output plugin API with stream methods.
- 45fdc9738b36 14.0 cited
Store 2PC GID in commit/abort WAL recs for logical decoding
- 1eb6d6527aae 11.0 cited