The Directory Server Access Control Model
Understanding the Directory Server Schema
Understanding Directory Server Plug-Ins
An equality index is a type of indexwhich is used to identify efficiently which entries are exactly equal to a given assertion value. An equality index may only be maintained for attributes that have a corresponding equality matching rule. That matching rule will be used to normalize values to use as index keys, and the value for that key will be the ID list containing the entry ID of the entries with values that are equal to that normalized value.