At 9:44 AM -0700 8/9/00, [log in to unmask] wrote:
>Again I'm not familiar with the implementation of Image B-tree indices,
>though I understand they're in the HFS, and would guess (bet?) that they're
>stored as filenames.
>
>At any rate, I think this stands as another testament to the efficiency of
>FIRSTPartyIndexing:  By maintaining a KSAM file in concert with an Image
>Master OR Detail, I can move all the overhead of b-trees to KSAM, which is
>very efficient as long as that file has only one key.  And finding all the
>entries that begin with "MA" is trivial.


As a matter of fact, Image B-tree indices *are* NM Ksam files stored in the
POSIX namespace with, I believe, a ".idx" extension.

B.