Thread:Extension talk:LDAP Authentication/Database returned error 42P01 (2.0c on 1.20.2)

With MediaWiki 1.20.2 and Plugin 2.0c i get this error: 42P01: ERROR: Relation »ldap_domains« does not exist LINE 1

maintenance\update.php was executed, but it seems as if the ldap.sql does not work. Maybe it is incompatible with Postgres database?