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Re: Bug with sequences and WAL ?

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I don't think this is very important, because the normal behavior of
sequences is that after a crash the sequence can be up to 32 (IIRC)
counts beyond the last value actually delivered before the crash.
To get "exact" restart behavior we'd need to emit a separate xlog
record for each nextval() command, which seems like a pretty high
price considering that you cannot assume no holes in the sequence
values anyway.
Hi,

You are right. I've already seen sequences increase up to 24 or 32 after a failover with PITR. However, I'm also using PITR in order to do switchover. In this case, I think that nothing
should change...
But, I recognize that using PITR for switchover is rather an "unsupported" functionnality...

Thank you,
Philippe Ferreira.


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