Subject: Re: [sqlite-dev] B-Trees




On Aug 29, 2009, at 2:54 PM, Ale S wrote:
>
> Is there ongoing (or planned) redesign of SQLite's btree layer? In
> particular related to B-Tree techniques discovered in recent years.
>
> If not, I was wondering what would be the requirements for a redesign
> and implementation (besides 100% testing.) Note this would most likely
> imply modifications to the file format. There are possibly a few major
> improvements with some work in this layer.


We do not make incompatible changes to the file format. We have a
huge installed base to support.

Furthermore, we do not use any technology that is less than 20 years
old, in order to avoid patent problems. We have users who are very
concerned about patents.


D. Richard Hipp
[email protected]



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