Re: [HACKERS] [BUGS] Concurrent ALTER SEQUENCE RESTART Regression

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От Tom Lane
Тема Re: [HACKERS] [BUGS] Concurrent ALTER SEQUENCE RESTART Regression
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Msg-id 28251.1494437319@sss.pgh.pa.us
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Ответ на Re: [HACKERS] [BUGS] Concurrent ALTER SEQUENCE RESTART Regression  (Andres Freund <andres@anarazel.de>)
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Andres Freund <andres@anarazel.de> writes:
> On 2017-05-10 10:29:02 -0400, Tom Lane wrote:
>> As long as it doesn't block, the change in lock strength doesn't actually
>> make any speed difference does it?

> The issue isn't the strength, but that we currently have this weird
> hackery around open_share_lock():

Oh!  I'd forgotten about that.  Yes, if we change that then we'd
need to do some performance checking.
        regards, tom lane

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