站内信性能优化

@@ -57,7 +57,11 @@
         limit #{rowNo},#{limit}
     </select>
     <select id="selectTotalInboxs" resultType="java.lang.Integer">
-        select count(1) from ${tableName}  where uid = #{uid} and is_del='N'
+        select count(1) from ${tableName}
+        <if test="type != null">
+            force index(`read`) 
+        </if>
+        where uid = #{uid} and is_del='N'
         <if test="type != null">
             and type=#{type}
         </if>