Re: Table locks

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От
Tom Lane
Тема
Re: Table locks
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Msg-id
26135.971116863@sss.pgh.pa.us
Ответ на
Re: Table locks (Bruce Momjian)
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Table locks "Dale Anderson" <danderso@crystalsugar.com>
Re: Table locks Tom Lane <tgl@sss.pgh.pa.us>
Re: Table locks Bruce Momjian <pgman@candle.pha.pa.us>
Re: Table locks Tom Lane <tgl@sss.pgh.pa.us>
Re: Table locks Bruce Momjian <pgman@candle.pha.pa.us>
Re: Table locks Tom Lane <tgl@sss.pgh.pa.us>
Re: Table locks Bruce Momjian <pgman@candle.pha.pa.us>
Re: Table locks Tom Lane <tgl@sss.pgh.pa.us>
Re: Table locks Bruce Momjian <pgman@candle.pha.pa.us>
Lock problem on Solaris Travis Bauer <trbauer@cs.indiana.edu>
Re: Lock problem on Solaris Tom Lane <tgl@sss.pgh.pa.us>
Re: Lock problem on Solaris Travis Bauer <trbauer@cs.indiana.edu>
Re: Table locks Bruce Momjian <pgman@candle.pha.pa.us>
Bruce Momjian  writes:
> No spinlock.  I was going to just grab a snapshot as it existed.  If it
> changes while I am grabbing it, I just try again.

Unless, of course, you follow a now-dangling pointer and cause a backend
crash.  But even without that, how do you know whether you grabbed a
self-consistent snapshot or not?

			regards, tom lane
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