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From dag.wan...@oracle.com (Dag H. Wanvik)
Subject Re: R-Tree
Date Sun, 13 Nov 2011 22:14:08 GMT
Karl Weber <karl.weber99@googlemail.com> writes:

> Is there a way to use an R-Tree with derby db? (Or a GiST?)
> In [1] R-Trees are mentioned on page 55. Is it possible to add one's own 
> implementation on top of derby, if it is not added to derby? How would one do 
> this?

This would be a non-trivial amount of work. Derby currently uses B-tree
indexes only. Although the code is fairly well modularized, I suspect
assumptions about B-tree indexes pervade more code than the optimizer.


> /Karl
> [1] http://db.apache.org/derby/binaries/ApacheDerbyInternals_1_1.pdf

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