Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15)

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От Maxim Orlov
Тема Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15)
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Msg-id CACG=ezaxJjQsHYuasKhAgR3-5VuU1+JFVjv=ivqhOwH=dbd3Fw@mail.gmail.com
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Ответ на Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15)  (Aleksander Alekseev <aleksander@timescale.com>)
Ответы Re: XID formatting and SLRU refactorings (was: Add 64-bit XIDs into PostgreSQL 15)
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On Tue, 21 Feb 2023 at 16:59, Aleksander Alekseev <aleksander@timescale.com> wrote:
Hi,

One thing that still bothers me is that during the upgrade we only
migrate the CLOG segments (i.e. pg_xact / pg_clog) and completely
ignore all the rest of SLRUs:

* pg_commit_ts
* pg_multixact/offsets
* pg_multixact/members
* pg_subtrans
* pg_notify
* pg_serial
 
Hi! We do ignore these values, since in order to pg_upgrade the server it must be properly stopped and no transactions can outlast this moment.


--
Best regards,
Maxim Orlov.

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