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Re: GetCurrentVirtualXIDs() - Mailing list pgsql-hackers

From Tom Lane
Subject Re: GetCurrentVirtualXIDs()
Date
Msg-id 7890.1232126104@sss.pgh.pa.us
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In response to GetCurrentVirtualXIDs()  (Simon Riggs <simon@2ndQuadrant.com>)
Responses Re: GetCurrentVirtualXIDs()
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Simon Riggs <simon@2ndQuadrant.com> writes:
> No need to wait for idle-in-transaction sessions during index builds.
> GetCurrentVirtualXIDs() specifically *includes* backends that have
> proc->xmin == InvalidTransactionId (0), but I'm not sure why.

Because they might be about to change xmin to something real?
        regards, tom lane

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