diff --git a/src-modules/module/rpta/conf/rpta.xml b/src-modules/module/rpta/conf/rpta.xml
index 202b5db..c72575f 100644
--- a/src-modules/module/rpta/conf/rpta.xml
+++ b/src-modules/module/rpta/conf/rpta.xml
@@ -21,7 +21,7 @@ rightname="CS_BIA_STANDARDREPORTS_ADMIN[RPTA]" />
 		<column name="column_type" type="INTEGER" size="" default=""	notnull="true" description="Spaltentyp" ><comment>Physische Spalte/Logische Spalte/Lookup</comment></column>
 		<column name="col_function" type="TEXT" size="255" default=""	notnull="" description="Funktion" ><comment>Bei logischen Spalten/Lookup</comment></column>
 		<column name="is_aggregate" type="SMALLINT" size="2" default=""	notnull="" description="Aggregierte Spalte" ></column>
-		<column name="resultset_id" type="INTEGER" size="255" default=""	notnull="" description="Resultset" />
+		<column name="resultset_id" type="INTEGER" size="255" default=""	notnull="true" description="Resultset" />
 		<column name="custom" type="INTEGER" size="255" default="1"	notnull="" description="Manuell erstellt" ><comment>0 = Auslieferung</comment></column>
 		<column name="description" type="TEXT" size="255" default=""	notnull="" description="Beschreibung" ><comment>Erläuterungstext</comment></column>
 		
@@ -38,7 +38,10 @@ rightname="CS_BIA_STANDARDREPORTS_ADMIN[RPTA]" />
 </rs>
 </primaryKeys>
 <indexes>
-
+<index name="ix_rpta_column1" type="unique">
+<index-column name="uniquename"/>
+<index-column name="resultset_id"/>
+</index>
 </indexes>
 </table>
 
diff --git a/src-modules/module/rpta/upgrade/rpta_pre_upgrade_pg.sql b/src-modules/module/rpta/upgrade/rpta_pre_upgrade_pg.sql
new file mode 100644
index 0000000..030cf01
--- /dev/null
+++ b/src-modules/module/rpta/upgrade/rpta_pre_upgrade_pg.sql
@@ -0,0 +1,14 @@
+
+
+--Duplikate raus:
+
+select uniquename,resultset_id into temp tmp_doppelt
+from rpta_column
+group by 1,2
+having count(*)>1;
+
+delete from rpta_column where (uniquename,resultset_id)
+in (select uniquename,resultset_id
+from tmp_doppelt);
+
+drop table tmp_doppelt;