diff --git a/src/main/java/org/minimalj/backend/db/DbSyntax.java b/src/main/java/org/minimalj/backend/db/DbSyntax.java
index <HASH>..<HASH> 100644
--- a/src/main/java/org/minimalj/backend/db/DbSyntax.java
+++ b/src/main/java/org/minimalj/backend/db/DbSyntax.java
@@ -43,15 +43,7 @@ public abstract class DbSyntax {
 			throw new IllegalArgumentException();
 		}
 		s.append(" NOT NULL");
-//		if (idClass == Integer.class || idClass == Long.class) {
-//			addAutoIncrement(s);
-//		}
 	}
-
-//  to be supported again later
-//	protected void addAutoIncrement(StringBuilder s) {
-//		s.append(" AUTO_INCREMENT");
-//	}
 	
 	/*
 	 * Only public for tests. If this method doesnt throw an IllegalArgumentException
@@ -193,11 +185,6 @@ public abstract class DbSyntax {
 	
 	public static class DerbyDbSyntax extends DbSyntax {
 
-//		@Override
-//		protected void addAutoIncrement(StringBuilder s) {
-//			s.append(" GENERATED BY DEFAULT AS IDENTITY (START WITH 1, INCREMENT BY 1)");
-//		}
-		
 		@Override
 		public void addColumnDefinition(StringBuilder s, PropertyInterface property) {
 			Class<?> clazz = property.getClazz();
DbSyntax: removed comments about incrementing ids

will never be used again