bufix: @ReturnGeneratedKeys

Author: Qieqie

paoding-rose-jade/src/main/java/net/paoding/rose/jade/statement/UpdateQuerier.java

@@ -102,6 +102,8 @@ private Object executeSingle(StatementRuntime runtime) {
             return result.floatValue();
         } else if (returnType == Number.class) {
             return result;
+        } else if (returnType == String.class || returnType == CharSequence.class) {
+            return String.valueOf(result);
         } else {
             throw new DataRetrievalFailureException(
                 "The generated key is not of a supported numeric type: " + returnType.getName());