Re: [HACKERS] Challenges preventing us moving to 64 bit transactionid (XID)?

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От Andres Freund
Тема Re: [HACKERS] Challenges preventing us moving to 64 bit transactionid (XID)?
Дата
Msg-id 20170607164923.wzq2almkfuan7wr2@alap3.anarazel.de
обсуждение исходный текст
Ответ на Re: [HACKERS] Challenges preventing us moving to 64 bit transactionid (XID)?  (Alvaro Herrera <alvherre@2ndquadrant.com>)
Ответы Re: [HACKERS] Challenges preventing us moving to 64 bit transactionid (XID)?  (Robert Haas <robertmhaas@gmail.com>)
Список pgsql-hackers
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On 2017-06-07 07:49:00 -0300, Alvaro Herrera wrote:
> Instead of adding a second 64 bit counter for multixacts, how about
> first implementing something like TED which gets rid of multixacts (and
> freezing thereof) altogether?

-1 - that seems like a too high barrier. We've punted on improvements on
this because of CSN, xid-lsn ranges, and at some point we're going to
have to make pragmatic choices, rather than strive for something more ideal.

- Andres

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