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.