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search with negation of undefined objectClass returns nothing
I?ve been working on a conversion of a directory to OpenLDAP. I stumbled
upon some search results that I could not explain.
One of our programs searches for LDAP entries with a negation of certain
object classes, so that extraneous entries are ignored. In OpenLDAP, if the
passed objectClass is not defined (as a valid objectClass in the schema), it
returns back nothing every time.
For example, as expected, this returns back entries without the surname xx:
$ ldapsearch -xb "o=OrgName,c=US" '(!(sn=xx))'
And this will return back entries that do not have the groupOfNames
$ ldapsearch -xb "o=OrgName,c=US" '(!(objectClass=groupOfNames))'
But the negation of an undefined objectClass returns nothing (without any
$ ldapsearch -xb "o=OrgName,c=US" '(!(objectClass=xx))'
On another LDAP system (iPlanet), the last query above returns back all
entries. Does OpenLDAP by design throw out the search for an objectClass
value that is not defined? Could this be a configuration issue?
Many thanks for all of your efforts in this project! --charlie h.
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