fix bug

+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
+<mapper namespace="com.yoho.search.dal.ProductColorsMapper">
+    <resultMap id="ProductColors" type="com.yoho.search.dal.model.ProductColors">
+        <result column="product_id" property="productId" jdbcType="INTEGER"/>
+        <result column="color_ids" property="colorIds" jdbcType="VARCHAR"/>
+        <result column="color_names" property="colorNames" jdbcType="VARCHAR"/>
+    </resultMap>
+    <select id="getProductColors" resultMap="ProductColors" timeout="20000">
+        <![CDATA[
+        SELECT
+		`a`.`product_id` AS `product_id`,
+		group_concat(`a`.`color_id` SEPARATOR ',') AS `color_ids`,
+		group_concat(
+			`a`.`color_name` SEPARATOR ','
+		) AS `color_names`
+	    FROM
+		`goods` `a` where product_id in]]>
+        <foreach item="item" index="index" collection="list"
+                 open="(" separator="," close=")">
+            #{item}
+        </foreach>
+        GROUP BY
+        `a`.`product_id`
+    </select>
+</mapper>