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From Randall Leeds <randall.le...@gmail.com>
Subject Re: Fundamentals Question on CoucheDB's append only b+tree.
Date Tue, 13 Mar 2012 19:31:00 GMT
On Tue, Mar 13, 2012 at 10:40, Robert Newson <rnewson@apache.org> wrote:

> There's no linked list running between the leafs. A b+tree doesn't
> require one, though it's a common addition. The b+tree algorithm is a
> revision over a binary tree (where inner nodes point strictly at one
> left and one right item). To be a b+tree you need to hold many
> pointers on an inner node.
>

I thought being a B-tree was to have many pointers in inner nodes, being a
B+tree was to have *only* pointers in inner nodes and the values all at the
leaf nodes.
Whatever it's called, the latter is what CouchDB has.

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