On 23 Jun 2012, at 7:14pm, "Peter M. Friedrich" 
<[email protected]> wrote:

> do you think it's possible to create a different backend? I want to
> develop a relational database system which uses tables in FITS-files
> (for details about this format see
> http://fits.gsfc.nasa.gov/fits_standard.html). I guess it would be a
> good idea to use an approved database like SQLite with a new backend -
> in this case a different BTree-implementation.

Two ways to do it.  You can create your own virtual table mechanism

<http://www.sqlite.org/vtab.html>

or you can implement your own virtual file system

<http://www.sqlite.org/c3ref/vfs.html>

A third alternative is to jettison the SQLite name entirely and just to take 
some of the source code that makes up SQLite and use it for your own software 
which accesses FITS files.  You don't need any license to use any of the SQLite 
source code, just use it and (for preference) credit the SQLite team for 
supplying it.

Simon.
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