Problems using autoIncrement with primary Key

[Robert Einsle]

Hy List,

i have an another Problem using DDL-Utils.
The Base XML-Document is:

--- cut ---
 <database name="re_test">
   <table name="arbeitstage">
     <column name="jahr" primaryKey="true" required="true" 
type="BIGINT" size="8" autoIncrement="true" />
     <column name="monat" primaryKey="true" required="true" 
type="SMALLINT" size="2" autoIncrement="true" />
     <column name="tage" required="true" type="BIGINT" size="8" />
     <column name="feiertage" required="true" type="BIGINT" size="8" />
     <column name="wochenende" required="true" type="BIGINT" size="8" />
     <column name="arbeitstage" required="true" type="BIGINT" size="8" />
     <column name="monat_zahl" required="true" type="BIGINT" size="8" />
   </table>
   <table name="drucken">
     <column name="id" primaryKey="true" required="true" type="INTEGER" 
size="4" autoIncrement="true" />
     <column name="datum" required="true" type="DATE" size="4" />
     <column name="pers_nr" required="true" type="VARCHAR" size="50" />
     <column name="uhrzeit" required="true" type="VARCHAR" size="50" />
     <column name="zeiten" required="true" type="NUMERIC" size="4,2" />
     <column name="beschreibung" required="true" type="VARCHAR" 
size="2000" />
     <column name="abrechnung" required="false" type="BIT" size="1" />
     <column name="abgerechnet" required="false" type="BIT" size="1" />
     <!-- <foreign-key foreignTable="rechnung">
       <reference local="id" foreign="id"/>
     </foreign-key>  -->
   </table>
 </database>
--- cut ---

this generates me two Tables:

--- cut ---
CREATE TABLE arbeitstage
(
 jahr int8 NOT NULL DEFAULT nextval('arbeitstage_jahr_seq'::regclass),
 monat int2 NOT NULL DEFAULT nextval('arbeitstage_monat_seq'::regclass),
 tage int8 NOT NULL,
 feiertage int8 NOT NULL,
 wochenende int8 NOT NULL,
 arbeitstage int8 NOT NULL,
 monat_zahl int8 NOT NULL,
 CONSTRAINT arbeitstage_jahr_key UNIQUE (jahr),
 CONSTRAINT arbeitstage_monat_key UNIQUE (monat)
) ;
CREATE TABLE drucken
(
 id int4 DEFAULT nextval('drucken_id_seq'::regclass),
 datum date NOT NULL,
 pers_nr varchar(50) NOT NULL,
 uhrzeit varchar(50) NOT NULL,
 zeiten numeric(4,2) NOT NULL,
 beschreibung varchar(2000) NOT NULL,
 abrechnung bool,
 abgerechnet bool,
 CONSTRAINT drucken_id_key UNIQUE (id)
) ;
--- cut ---

if i remove the autoIncrement Statements, then the Primary Keys are 
created, of not, only Unique Keys are created.

Where is the Error?

Thanks

Greetings

Robert