Write-able CTEs, Update-able views, Hierarchical data, and optimistic locking

This might be a premature question considering write-able CTEs are not
in core, but...

I wondering if write-able CTE's will be the silver bullet that will
make rule based update-able views based multiple vertically
partitioned table robust. By robust, I mean to elimination the update
anomalies that can occur from the view point client side optimistic
locking where the virtual row appears to be inconsistently updated.

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Regards,
Richard Broersma Jr.

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