<update id="update" parameterType="java.util.List">
        <foreach collection="points" item="item" index="index" separator=";">
            update data_trend_point
        <set>
            <if test="item.dataTrendId != null">
                data_trend_id = #{item.dataTrendId,jdbcType=BIGINT},
            </if>
            <if test="item.edgeProductId != null">
                edge_product_id = #{item.edgeProductId,jdbcType=BIGINT},
            </if>
            <if test="item.deviceId != null">
                device_id = #{item.deviceId,jdbcType=BIGINT},
            </if>
            <if test="item.measuringPointId != null">
                measuring_point_id = #{item.measuringPointId,jdbcType=VARCHAR},
            </if>
            <if test="item.createBy != null">
                create_by = #{item.createBy,jdbcType=BIGINT},
            </if>
            <if test="item.createTime != null">
                create_time = #{item.createTime,jdbcType=DATE},
            </if>
            <if test="item.updateBy != null">
                update_by = #{item.updateBy,jdbcType=BIGINT},
            </if>
            <if test="item.updateTime != null">
                update_time = #{item.updateTime,jdbcType=DATE},
            </if>
        </set>
            where data_trend_point_id = #{item.dataTrendPointId,jdbcType=BIGINT}
        </foreach>
    </update>