Hi,

Heikki Linnakangas wrote:
> AFAICT it's roughly the same data structure as the zipper tree you
> envisioned, but not implemented with separate executor nodes for each
> level.

Aha, that sounds good to me. ;-)

As I've already mentioned, I think it's even better to simply show the
user a single append node, instead of lots of small nodes from a binary
tree merger.

Regards

Markus

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