From: Robert S. Thau (rst@ai.mit.edu)
Date: Fri Dec 29 2000 - 08:41:08 PST
Kenneth Meltsner writes:
> The alternative is patented by IBM -- put hooks in a traditional OS
> so that the file system is kept in sync with the RDBMS. Usual
> OS-speed for simple file service + fancy games with metadata
> queries for other applications.
Hmmm... I thought BeOS used this sort of mechanism, mirroring the file
system metastructure in some sort of quasi-relational db in order to
support BQuery objects (which let you ask for all file system nodes
satisfying some set predicate, which can even be expressed as a string
something like the 'where' clause of a SQL 'select'):
http://www.be.com/documentation/be_book/The%20Storage%20Kit/Query.html
This machinery has, I think, been there since Be's first release.
Have they licensed the patent?
rst
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