diff --git a/workflow/engine/config/schema.xml b/workflow/engine/config/schema.xml
index 3a6440982..a96822af7 100755
--- a/workflow/engine/config/schema.xml
+++ b/workflow/engine/config/schema.xml
@@ -2497,6 +2497,15 @@
     <column name="APP_FINISH_DATE" type="TIMESTAMP" required="false"/>
     <column name="APP_UPDATE_DATE" type="TIMESTAMP" required="true"/>
     <column name="APP_OVERDUE_PERCENTAGE" type="DOUBLE" required="true"/>
+    <index name="indexProUid">
+      <index-column name="PRO_UID"/>
+      <vendor type="mysql">
+          <parameter name="Table" value="APP_CACHE_VIEW"/>
+          <parameter name="Non_unique" value="1"/>
+          <parameter name="Key_name" value="indexProUid"/>
+          <parameter name="Seq_in_index" value="1"/>
+      </vendor>
+    </index>
     <index name="indexAppNumber">
       <index-column name="APP_NUMBER"/>
       <vendor type="mysql">
diff --git a/workflow/engine/data/mysql/schema.sql b/workflow/engine/data/mysql/schema.sql
index 044ba5c37..762972e6a 100755
--- a/workflow/engine/data/mysql/schema.sql
+++ b/workflow/engine/data/mysql/schema.sql
@@ -1193,6 +1193,7 @@ CREATE TABLE `APP_CACHE_VIEW`
 	`APP_UPDATE_DATE` DATETIME  NOT NULL,
 	`APP_OVERDUE_PERCENTAGE` DOUBLE  NOT NULL,
 	PRIMARY KEY (`APP_UID`,`DEL_INDEX`),
+	KEY `indexProUid`(`PRO_UID`),
 	KEY `indexAppNumber`(`APP_NUMBER`),
 	KEY `protitle`(`APP_PRO_TITLE`),
 	KEY `appupdatedate`(`APP_UPDATE_DATE`),