Re: Cannot Index uniqueMember ( uniqueMemberMatch)

[Donn Cave <donn@u.washington.edu>]

On Tuesday, March 30, 2004, at 08:41 AM, Gary Allen (ldap) wrote:
> Please correct me if I'm wrong but:
>
> I would guess (educated guess) that you cannot index on uniqueMember 
> because it is a multi valued attribute.  Whereas, uid and cn are only 
> single valued attributes (only one uid and cn are allowed within an 
> entry).

cn is actually not single-valued, nor is uid from what I can see.

The only explanation I can offer is that, in 
servers/slapd/schema_init.c, no
indexing function is provided for the uniqueMemberMatch equality syntax 
that
governs uniqueMember.  No doubt that's why indexes are not supported, 
though
it doesn't go very far to explain whether they should be in principle.

	Donn Cave, donn@u.washington.edu
-----
> > I am trying to setup indexing for the attribute uniqueMember.  I have 
> > added
> > the following line to my slapd.conf
> >
> > index uniqueMember eq
> >
> > When I start slapd in debug mode it get:
> >
> > /usr/local/etc/openldap/slapd.conf: line 69: equality index of 
> > attribute
> > "uniqueMember" disallowed
> >
> > I have tried 2.2.7, 2.2.8, 2.1.19.  All three versions seem to have 
> > the same
> > problem.
> > Any ideas?
> >
> > Thanks.
> >
> > -dan
> > --------------------------------------
> > Daniel Wachdorf
> > drwachd@sandia.gov
> > Sandia National Laboratories
> > System Security Research and Integration