column with NULL data type are no longer allowed

h2/src/main/org/h2/command/Parser.java

@@ -3187,6 +3187,11 @@ public class Parser {
             original = "VARCHAR_IGNORECASE";
             dataType = DataType.getTypeByName(original);
         }
+        if (dataType.type == Value.NULL) {
+            // we do support NULL in the database meta data, 
+            // but not actually when creating tables
+            throw Message.getSQLException(ErrorCode.UNKNOWN_DATA_TYPE_1, original);
+        }
         if (regular) {
             read();
         }