<value><string>Clearing reserved uids allows for reducing the size of the catalog after many Zope restart. It can be a dangerous operation if deferred execution of cataloging of objects has not been completed.</string></value>
<value><string>Exporting properties produces a human-readable XML file which can be imported later. It is useful to reconstruct the same catalog information.</string></value>
<value><string>Updating the catalog will update all catalog records and remove invalid records. It does this by deleting all indexes and re-cataloging all currently indexed objects.</string></value>
<value><string>A list of mappings local_roles_group_id | security_uid_column local_roles_group_id will be the name of a local roles group, and security_uid_column is the corresponding column in catalog table</string></value>