Do you just want the simple union, an ordered union by some criteria or do you mean intersection? Perhaps an example would help us help you!

Ian


On Apr 3, 2008, at 12:18 PM, Sean Ross wrote:
Hi All,
I'm hoping that someone can point me in the right direction here.

Given 2 secondary indices on an indexed btree is it at all possible to
create/use a derived index which is the union of the 2 created indices
without requiring the explicit creation of a 3rd index

or am i barking up the wrong tree?

Thanks,
Sean.
_______________________________________________
elephant-devel site list
elephant-devel@common-lisp.net
http://common-lisp.net/mailman/listinfo/elephant-devel

_______________________________________________
elephant-devel site list
elephant-devel@common-lisp.net
http://common-lisp.net/mailman/listinfo/elephant-devel

Reply via email to