private Node buildMysqlLoadNode() {
        List<FieldInfo> fields = Arrays.asList(new FieldInfo("id", new LongFormatInfo()),
                new FieldInfo("name", new StringFormatInfo()),
                new FieldInfo("age", new IntFormatInfo()));
        List<FieldRelation> relations = Arrays
                .asList(new FieldRelation(new FieldInfo("id", new LongFormatInfo()),
                        new FieldInfo("id", new LongFormatInfo())),
                        new FieldRelation(new FieldInfo("name", new StringFormatInfo()),
                                new FieldInfo("name", new StringFormatInfo())),
                        new FieldRelation(new FieldInfo("age", new IntFormatInfo()),
                                new FieldInfo("age", new IntFormatInfo())));
        return new MySqlLoadNode("2", "mysql_output", fields, relations, null,
                null, null, null, "jdbc:mysql://localhost:3306/inlong",
                "inlong", "inlong", "table_output", "id");
    }
Test flink sql task for extract is kafka {@link KafkaExtractNode} and load is mysql {@link MySqlLoadNode}

@throws Exception The exception may be thrown when executing
inlong-sort/sort-core/src/test/java/org/apache/inlong/sort/parser/KafkaSqlParseTest.java