Horton

RE: Skipping logical replication transactions on subscriber side

Zhijie Hou (Fujitsu) <houzj.fnst@fujitsu.com>

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From: "houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>
To: Masahiko Sawada <sawada.mshk@gmail.com>
Cc: "osumi.takamichi@fujitsu.com" <osumi.takamichi@fujitsu.com>, Alexey Lesovsky <lesovsky@gmail.com>, Peter Eisentraut <peter.eisentraut@enterprisedb.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>, Amit Kapila <amit.kapila16@gmail.com>
Date: 2021-08-16T07:53:52Z
Lists: pgsql-hackers 
Monday, August 16, 2021 3:00 PM Hou, Zhijie wrote:
> On Thu, Aug 12, 2021 1:53 PM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
> > I've attached the updated patches. FYI I've included the patch
> > (v8-0005) that fixes the assertion failure during shared fileset
> > cleanup to make cfbot tests happy.
> 
> Hi,
> 
> Thanks for the new patches.
> I have a few comments on the v8-0001 patch.
> 3)
> Do we need to invoke set_apply_error_context_xact() in the function
> apply_handle_stream_prepare() to save the xid and timestamp ?

Sorry, this comment wasn't correct, please ignore it.
Here is another comment:

+char *
+logicalrep_message_type(LogicalRepMsgType action)
+{
...
+		case LOGICAL_REP_MSG_STREAM_END:
+			return "STREAM END";
...

I think most the existing code use "STREAM STOP" to describe the
LOGICAL_REP_MSG_STREAM_END message, is it better to return "STREAM STOP" in
function logicalrep_message_type() too ?

Best regards,
Hou zj

Commits

  1. Test ALIGNOF_DOUBLE==4 compatibility under ALIGNOF_DOUBLE==8.

  2. Reorder subskiplsn in pg_subscription to avoid alignment issues.

  3. Add ALTER SUBSCRIPTION ... SKIP.

  4. Optionally disable subscriptions on error.

  5. Update docs of logical replication for commit 8d74fc96db.

  6. Respect permissions within logical replication.

  7. Fix regression test failure caused by commit 8d74fc96db.

  8. Add a view to show the stats of subscription workers.

  9. Add logical change details to logical replication worker errcontext.

  10. Rename LOGICAL_REP_MSG_STREAM_END to LOGICAL_REP_MSG_STREAM_STOP.

  11. Fix typo in protocol.sgml.

  12. Remove unused argument in apply_handle_commit_internal().

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

  14. Reorder pg_sequence columns to avoid alignment issue