changing the type should not require further action. It should only affect how the LDAP server performs searches (case-sensitively vs. case-insensitively).
LDAP indexes can be used in order to speed up lookups. If you often search filtering on your
univentionFreeAttributeX then creating an index for that attribute may be useful. Univention comes with several UCR variables that control which attributes are indexed (see the output of
ucr search ldap/index). The most important one are probably the
eq (euqality, e.g.
sub (sub-string matching, e.g.
After setting the corresponding variables you’ll have to re-create the indexes. Read the UCS performance guide for more information and how to do that.
Please be careful to keep the existing values in the UCR variables. Removing them would cause severe performance problems for most common LDAP searches.