> Correct me if I am wrong, but both cases do present a problem currently
> in 7.1. The WAL log will not remove any WAL files for transactions that
> are still open (even after a checkpoint occurs). Thus if you do a bulk
> insert of gigabyte size you will require a gigabyte sized WAL
> directory. Also if you have a simple OLTP transaction that the user
> started and walked away from for his one week vacation, then no WAL log
> files can be deleted until that user returns from his vacation and ends
> his transaction.
I am not sure, it might be so implemented. But there is no technical reason
to keep them beyond checkpoint without UNDO.
Andreas
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