> WAL was a difficult feature to add to 7.1.  Currently, it is only used
> as a performance benefit, but I expect it will be used in the future to

Not only. Did you forget about btree stability?
Partial disk writes?

> add new features like:
> 
>       Advanced Replication

I'm for sure not fan of this.

>       Point-in-time recovery
>       Row reuse without vacuum

Yes, it will help to remove uncommitted rows.

And don't forget about SAVEPOINTs.

Vadim

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