Quanah Gibson-Mount wrote: > > > --On Monday, June 05, 2006 2:54 PM -0400 Alex Karasulu > <[EMAIL PROTECTED]> wrote: > >>> I assume it should also handle approx, which is not the same as >>> substring. >> >> >> No as I mentioned before ApacheDS does not do approximate matching and >> so it does not have an option to create approx indices. > > > Right, my point was, I'd assume that should be added, so that it could > be supported.... > I don't find the approx matching algorithms based on soundex etc to be all that useful. Plus the indices get bloated and the server's write performance diminishes much faster. Approx indices must generate all the varients of a word using these algorithms which can be large. Every add, del or modify operation then must regenerate these soundex derivatives for the old value as well as new values in the modify op. Keep in mind also some attributes will be multivalued so the explosion can be quit large.
IMO approx match is one of those things that was a good idea but is not critical or used all that much. If we find the time or if you're interested you can implement this feature. For now no index is created for approx matching. Alex
