Functional Indexes

Hello all,

I have a function (urlhost) which finds the 'host' portion of a URL. In the case of http://www.foobar.com/really/long/path/to/a/file it returns "www.foobar.com".

I also have a function (urltld) which returns the TLD of a URL. In the case of http://www.foobar.com/really/long/path/to/a/file it returns ".com" (the leading dot is OK).

urltld uses urlhost to do it's job (how should be apparent).

Now the question: is there a single index I can create that will be used when my WHERE clause contains either urlhost or urltld? I could create two functional indexes, but that seems a bit silly to me.

Any thoughts?

--------------------------
David Olbersen
iGuard Engineer
St. Bernard Software
11415 West Bernardo Court
San Diego, CA 92127
1-858-676-2277 x2152