Re: [PoC] pg_upgrade: allow to upgrade publisher node

From: Dilip Kumar <dilipbalaut(at)gmail(dot)com>
To: "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, "Zhijie Hou (Fujitsu)" <houzj(dot)fnst(at)fujitsu(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Bruce Momjian <bruce(at)momjian(dot)us>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
Subject: Re: [PoC] pg_upgrade: allow to upgrade publisher node
Date: 2023-09-20 06:21:35
Message-ID: CAFiTN-uzO_5SZO6skM0ywbBX8mfE5uT_2qNnhYHjRCr1vemqew@mail.gmail.com
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On Wed, Sep 20, 2023 at 11:00 AM Hayato Kuroda (Fujitsu)
<kuroda(dot)hayato(at)fujitsu(dot)com> wrote:
>
> Dear Amit,
>
> Thank you for reviewing! PSA new version. In this version I ran pgindent again.
>

+ /*
+ * There is a possibility that following records may be generated
+ * during the upgrade.
+ */
+ if (!CHECK_WAL_RECORD(rmid, info, RM_XLOG_ID, XLOG_CHECKPOINT_SHUTDOWN) &&
+ !CHECK_WAL_RECORD(rmid, info, RM_XLOG_ID, XLOG_CHECKPOINT_ONLINE) &&
+ !CHECK_WAL_RECORD(rmid, info, RM_XLOG_ID, XLOG_SWITCH) &&
+ !CHECK_WAL_RECORD(rmid, info, RM_XLOG_ID, XLOG_FPI_FOR_HINT) &&
+ !CHECK_WAL_RECORD(rmid, info, RM_XLOG_ID, XLOG_PARAMETER_CHANGE) &&
+ !CHECK_WAL_RECORD(rmid, info, RM_STANDBY_ID, XLOG_RUNNING_XACTS) &&
+ !CHECK_WAL_RECORD(rmid, info, RM_HEAP2_ID, XLOG_HEAP2_PRUNE))
+ is_valid = false;
+
+ CHECK_FOR_INTERRUPTS();

Just wondering why XLOG_HEAP2_VACUUM or other vacuum-related commands
can not occur during the upgrade?

--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com

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