From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Applying XLR_INFO_MASK correctly when looking at WAL record information |
Date: | 2016-11-05 00:14:21 |
Message-ID: | CAB7nPqQ=b8V64JNRPAHpaHwmayNxxHXxiB1jqNxSONPrvqSDfA@mail.gmail.com |
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Lists: | pgsql-hackers |
On Sat, Nov 5, 2016 at 2:29 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Michael Paquier <michael(dot)paquier(at)gmail(dot)com> writes:
>> I have just been trapped by the fact that in some code paths we look
>> at the RMGR information of a WAL record (record->xl_info) but the
>> filter dedicated to it, ~XLR_INFO_MASK, is not applied. This is
>> harmful now, but this could lead to problems if in the future new
>> record-level flags, similar to XLR_SPECIAL_REL_UPDATE, are added.
>> Disclaimer: I am looking at a patch where a record-level flag makes
>> sense, still this looks like a separate problem.
>
>> What about the patch attached to make things more consistent?
>
> Grepping found a couple of additional places that needed the same
> fix.
Ah, where wasShutdown is assigned. I thought I grepped it as well,
thanks for double-checking.
> Pushed with those additions.
Thanks.
--
Michael
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