Re: Lock contention in TransactionIdIsInProgress()

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От Michael Paquier
Тема Re: Lock contention in TransactionIdIsInProgress()
Дата
Msg-id CAB7nPqRXkX5yW3C8q6bX5L3hzJtWWiLFko-EOHxYP0d5hXkcKA@mail.gmail.com
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Ответ на Re: Lock contention in TransactionIdIsInProgress()  (Merlin Moncure <mmoncure@gmail.com>)
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On Fri, Oct 7, 2016 at 10:36 PM, Merlin Moncure <mmoncure@gmail.com> wrote:
> On Wed, Oct 5, 2016 at 5:38 AM, Tomáš Uko <uko@avast.com> wrote:
>> Hi Jeff,
>>
>>
>>
>> We have encountered same problem as you (in 9.5.4), it seems that so far it
>> hasn’t been ported back from 9.6, but if you take this commit and apply it
>> to 9.5 source codes, it seems to be working
>>
>> But anyway, does anybody knows plans about backporting this to 9.5 official
>> way?
>
> Won't happen. Only bugs get ported back, and performance enhancements
> generally don't qualify (in very exceptional cases they might but this
> issue is a routine performance enhancement).  Basically you have to
> decide to update or stay with 9.5.

Another possibility is to patch and build yourself Postgres if you are
still willing to use that with a given version. But as that's actually
forking the upstream version, it won't be supported by community.
--
Michael


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