Re: [SQL] begin/end/abort work for sequences?

> > If we rolled back sequence numbers, we would have to lock the table
> > until the transaction commited or was rolled back.  That is too much
> > locking so was not worth it.
> >
> 
> That seems like a pretty big thing to sacrifice.  Did sequence locking work before
> 6.5?  It was my impression that it did.

No, sequence numbers of aborted transactions never were saved.

> Do you know if there is a workaround?  In my particular situation, it is critical
> that all instances of the sequence actually get used.  If a transaction is
> aborted, I lose an instance and everything gets messed up.

I recommend hand-rolling a sequence number, similar to how the sequence
mechanism works, but explicitly lock your sequence table, retrieve the
value, and the commit/abort will unlock the table.

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