Mark Rostron writes:
> When the XID wraps, at the moment it does so, unless you set
> vacuum_freeze_min_age to 0 and a vacuum has just been performed, is
> there not a chance that there will be some data loss?
No. XID comparisons are modulo 2^31.
regards, tom lane
--
S
When the XID wraps, at the moment it does so, unless you set
vacuum_freeze_min_age to 0 and a vacuum has just been performed, is there not a
chance that there will be some data loss? If it changes value from (2^32 -1) to
(0), it's value is going to be less than SOME rows - the ones which have no
> -- Forwarded message --
>> So, you have everything running and working in aprox. 10 seconds.
>
> All of the Windows Server stuff via Microsoft Cluster Services I'm aware of
> does its shared storage node fencing via sending specific SCSI calls
> (PERSISTENT RESERVE) to the >stor
