ibatis动态SQL如何实现两个数据之间的转换

<sql id="convertData">
  <choose>
    <when test="condition == 'condition1'">
      SELECT CONVERT(A, type1) AS B FROM table
    </when>
    <when test="condition == 'condition2'">
      SELECT CONVERT(A, type2) AS B FROM table
    </when>
    <otherwise>
      SELECT A AS B FROM table
    </otherwise>
  </choose>
</sql>

<select id="getData" parameterType="map" resultType="resultMap">
  <include refid="convertData"/>
</select>

Map<String, Object> paramMap = new HashMap<>();
paramMap.put("condition", "condition1");
List<ResultObject> result = sqlSession.selectList("getData", paramMap);