优化sql

yd-api/src/main/java/com/yd/api/practitioner/service/impl/PractitionerServiceImpl.java

@@ -522,6 +522,7 @@ public class PractitionerServiceImpl implements com.yd.api.practitioner.service.
         for (ObjectCollectionTagged tagged: taggeds) {
             tagIds.add(Long.valueOf(tagged.getMdTagId()));
         }
+        if (!tagIds.isEmpty()){
             List<MdTag> mdTags = mdTagDALService.findByTagIdIn(tagIds);
             for (MdTag mdTag:mdTags) {
                 OpportunityCustomerTag tag = new OpportunityCustomerTag();
@@ -529,6 +530,7 @@ public class PractitionerServiceImpl implements com.yd.api.practitioner.service.
                 tag.setTagName(mdTag.getTagName());
                 tags.add(tag);
             }
+        }
         return tags;
     }
 

yd-api/src/main/resources/mapper/meta/MdTagMapper.xml

@@ -124,17 +124,12 @@
       <include refid="Base_Column_List" />
       from ag_md_tag
       <where>
-        <choose>
-          <when test="tagIds != null and tagIds.size() > 0">
+        <if test="tagIds != null and tagIds.size() > 0">
           id in
           <foreach item="item" collection="tagIds" separator="," open="(" close=")"  index="index">
             #{item}
           </foreach>
-          </when>
-          <otherwise>
-             1 = 2
-          </otherwise>
-        </choose>
+        </if>
       </where>
     </select>
 </mapper>
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