优化sql

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

@@ -522,12 +522,14 @@ public class PractitionerServiceImpl implements com.yd.api.practitioner.service.
         for (ObjectCollectionTagged tagged: taggeds) {
             tagIds.add(Long.valueOf(tagged.getMdTagId()));
         }
-        List<MdTag> mdTags = mdTagDALService.findByTagIdIn(tagIds);
-        for (MdTag mdTag:mdTags) {
-            OpportunityCustomerTag tag = new OpportunityCustomerTag();
-            tag.setTagId(mdTag.getId());
-            tag.setTagName(mdTag.getTagName());
-            tags.add(tag);
+        if (!tagIds.isEmpty()){
+            List<MdTag> mdTags = mdTagDALService.findByTagIdIn(tagIds);
+            for (MdTag mdTag:mdTags) {
+                OpportunityCustomerTag tag = new OpportunityCustomerTag();
+                tag.setTagId(mdTag.getId());
+                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">
-            id in
-            <foreach item="item" collection="tagIds" separator="," open="(" close=")"  index="index">
-              #{item}
-            </foreach>
-          </when>
-          <otherwise>
-             1 = 2
-          </otherwise>
-        </choose>
+        <if test="tagIds != null and tagIds.size() > 0">
+          id in
+          <foreach item="item" collection="tagIds" separator="," open="(" close=")"  index="index">
+            #{item}
+          </foreach>
+        </if>
       </where>
     </select>
 </mapper>
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