Re: [HACKERS] On markers of changed data

> 8 окт. 2017 г., в 20:11, Stephen Frost <sfrost@snowman.net> написал(а):
> * Andrey Borodin (x4mmm@yandex-team.ru) wrote:
>> But my other question still seems unanswered: can I use LSN logic for incrementing FSM and VM? Seems like most of
thetime there is valid LSN 
>
> I haven't gone and audited it myself, but I would certainly expect you
> to be able to use the LSN for everything which is WAL'd.  If you have
> cases where that's not the case, it'd be useful to see them.

Thanks, Stephen, this actually pointed what to look for
VM is WAL-logged [0]
FSM is not [1]

Now I have everything I wanted, and go back coding :)

Best regards, Andrey Borodin.

[0]
https://github.com/postgres/postgres/blob/113b0045e20d40f726a0a30e33214455e4f1385e/src/backend/access/heap/visibilitymap.c#L315
[1]
https://github.com/postgres/postgres/blob/1d25779284fe1ba08ecd57e647292a9deb241376/src/backend/storage/freespace/freespace.c#L593

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