> I was reading the WAL documentation, and found out that UNDO is going to let
> PostgreSQL allow to make partial rollbacks on invalid transactions.
We already "undo" aborted transactions, but without using the WAL log.
Not sure if we will ever add that feature to WAL.
> What does this exactly mean? Does it mean that if I have 6 Inserts in between
> a begin work - commit work some will get through and the ones with errors no?
No, they all fail. No worries.
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