diff --git a/workflow/engine/config/schema.xml b/workflow/engine/config/schema.xml
index 5fcb3f964..6170bbbde 100755
--- a/workflow/engine/config/schema.xml
+++ b/workflow/engine/config/schema.xml
@@ -201,6 +201,15 @@
             <index-column name="DEL_THREAD_STATUS"/>
             <index-column name="APP_NUMBER"/>
         </index>
+        <fulltext name="indexDelTitle">
+            <index-column name="DEL_TITLE"/>
+            <vendor type="mysql">
+                <parameter name="Table" value="APP_DELEGATION"/>
+                <parameter name="Non_unique" value="1"/>
+                <parameter name="Key_name" value="indexDelTitle"/>
+                <parameter name="Seq_in_index" value="1"/>
+            </vendor>
+        </fulltext>
     </table>
     <table name="APP_DOCUMENT">
         <vendor type="mysql">
diff --git a/workflow/engine/data/mysql/schema.sql b/workflow/engine/data/mysql/schema.sql
index b07da70ba..d4cae47a4 100644
--- a/workflow/engine/data/mysql/schema.sql
+++ b/workflow/engine/data/mysql/schema.sql
@@ -102,7 +102,8 @@ CREATE TABLE `APP_DELEGATION`
 	KEY `INDEX_PRO_ID`(`PRO_ID`),
 	KEY `INDEX_TAS_ID`(`TAS_ID`),
 	KEY `INDEX_USR_UID`(`USR_UID`),
-	KEY `INDEX_THREAD_STATUS_APP_NUMBER`(`DEL_THREAD_STATUS`, `APP_NUMBER`)
+	KEY `INDEX_THREAD_STATUS_APP_NUMBER`(`DEL_THREAD_STATUS`, `APP_NUMBER`),
+	FULLTEXT `indexDelTitle`(`DEL_TITLE`)
 )ENGINE=InnoDB  DEFAULT CHARSET='utf8' COMMENT='Delegation a task to user';
 #-----------------------------------------------------------------------------
 #-- APP_DOCUMENT