Re: Logical Replication of sequences

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От Peter Smith
Тема Re: Logical Replication of sequences
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Msg-id CAHut+PtyZPeMRchStdpj0Tf_aP7GMGtmarTO=HR-E7h69gZ60A@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Logical Replication of sequences  (vignesh C <vignesh21@gmail.com>)
Ответы Re: Logical Replication of sequences
Список pgsql-hackers
Here are a few comments for patch v20240705-0003.

(This is a WIP. I have only looked at the docs so far.)

======
doc/src/sgml/config.sgml

nitpick - max_logical_replication_workers: /and sequence
synchornization worker/and a sequence synchornization worker/

======
doc/src/sgml/logical-replication.sgml

nitpick - max_logical_replication_workers: re-order list of workers to
be consistent with other docs 1-apply,2-parallel,3-tablesync,4-seqsync

======
doc/src/sgml/ref/alter_subscription.sgml

1.
IIUC the existing "REFRESH PUBLICATION" command will fetch and sync
all new sequences, etc., and/or remove old ones no longer in the
publication. But current docs do not say anything at all about
sequences here. It should say something about sequence behaviour.

~~~

2.
For the existing "REFRESH PUBLICATION" there is a sub-option
"copy_data=true/false". Won't this need some explanation about how it
behaves for sequences? Or will there be another option
"copy_sequences=true/false".

~~~

3.
IIUC the main difference between REFRESH PUBLICATION and REFRESH
PUBLICATION SEQUENCES is that the 2nd command will try synchronize
with all the *existing* sequences to bring them to the same point as
on the publisher, but otherwise, they are the same command. If that is
correct understanding I don't think that distinction is made very
clear in the current docs.

~~~

nitpick - the synopsis is misplaced. It should not be between ENABLE
and DISABLE. I moved it. Also, it should say "REFRESH PUBLICATION
SEQUENCES" because that is how the new syntax is defined in gram.y

nitpick - REFRESH SEQUENCES. Renamed to "REFRESH PUBLICATION
SEQUENCES". And, shouldn't "from the publisher" say "with the
publisher"?

nitpick - changed the varlistentry "id".

======
99.
Please also see the attached diffs patch which implements any nitpicks
mentioned above.

======
Kind Regards,
Peter Smith.
Fujitsu Australia

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