[racket] "fra" status?

I was looking today for a way to make relational algebra queries on lists, and your "fra" package was close enough to try out. I have a number of questions, though:

1) Is this package superseded by any of your more recent stuff? It looks like m8b and grade-samurai use something file-system based instead?
2) I don't see any functions that allow translation back & forth to list-based representations. E.G., sexp->db. I see that you can hack this in at the syntax level, but this seems overly complicated.
3) The planet package has old-school references to cce/scheme, which (IIUC) is now superseded by stuff in the main collects tree.

 John

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 4800 bytes
Desc: not available
URL: <http://lists.racket-lang.org/users/archive/attachments/20120906/65654a63/attachment.p7s>