Re: MaxOffsetNumber for Table AMs

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От Jeff Davis
Тема Re: MaxOffsetNumber for Table AMs
Дата
Msg-id 171f92ddd77306614e03954cd6c5cabff75afd48.camel@j-davis.com
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Ответ на Re: MaxOffsetNumber for Table AMs  (Hannu Krosing <hannuk@google.com>)
Ответы Re: MaxOffsetNumber for Table AMs  (Hannu Krosing <hannuk@google.com>)
Re: MaxOffsetNumber for Table AMs  (Robert Haas <robertmhaas@gmail.com>)
Список pgsql-hackers
On Thu, 2021-05-06 at 03:26 +0200, Hannu Krosing wrote:
> How hard would it be to declare TID as current ItemPointerData with
> some values prohibited (NULL, SpecTokenOffsetNumber = 0xfffe,
> MovedPartitionsOffsetNumber = 0xfffd, presumably also 0xffff ?).

I don't think there's consensus in this thread that we want to do that,
but I'd be fine with it.

It's possible but not trivial. tidbitmap.c would be the biggest
challenge, I think.

Regards,
    Jeff Davis






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