diff --git a/workflow/engine/config/schema.xml b/workflow/engine/config/schema.xml
index efa6b2048..38a332e67 100755
--- a/workflow/engine/config/schema.xml
+++ b/workflow/engine/config/schema.xml
@@ -2458,7 +2458,6 @@
     <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"/>
-    <column name="TAS_DURATION" type="DOUBLE" required="true" default="0"/>
     <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 f1a7059b0..2af1322f7 100755
--- a/workflow/engine/data/mysql/schema.sql
+++ b/workflow/engine/data/mysql/schema.sql
@@ -1175,7 +1175,6 @@ CREATE TABLE `APP_CACHE_VIEW`
 	`APP_FINISH_DATE` DATETIME,
 	`APP_UPDATE_DATE` DATETIME  NOT NULL,
 	`APP_OVERDUE_PERCENTAGE` DOUBLE  NOT NULL,
-	`TAS_DURATION` DOUBLE default 0 NOT NULL,
 	PRIMARY KEY (`APP_UID`,`DEL_INDEX`),
 	KEY `indexAppNumber`(`APP_NUMBER`),
 	KEY `protitle`(`APP_PRO_TITLE`),
diff --git a/workflow/engine/methods/setup/setupSchemas/app_cache_view.sql b/workflow/engine/methods/setup/setupSchemas/app_cache_view.sql
index bffb45cba..74cf64bbb 100755
--- a/workflow/engine/methods/setup/setupSchemas/app_cache_view.sql
+++ b/workflow/engine/methods/setup/setupSchemas/app_cache_view.sql
@@ -31,7 +31,6 @@ CREATE TABLE `APP_CACHE_VIEW`
 	`APP_FINISH_DATE` DATETIME,
 	`APP_UPDATE_DATE` DATETIME  NOT NULL,
 	`APP_OVERDUE_PERCENTAGE` DOUBLE  NOT NULL,
-	`TAS_DURATION` DOUBLE default 0 NOT NULL,
 	PRIMARY KEY (`APP_UID`,`DEL_INDEX`),
 	KEY `indexAppNumber`(`APP_NUMBER`),
 	KEY `indexAppUser`(`USR_UID`, `APP_STATUS`)
diff --git a/workflow/engine/methods/setup/setupSchemas/app_cache_view_insert.sql b/workflow/engine/methods/setup/setupSchemas/app_cache_view_insert.sql
index 42ede2e57..e3e4ccdf9 100755
--- a/workflow/engine/methods/setup/setupSchemas/app_cache_view_insert.sql
+++ b/workflow/engine/methods/setup/setupSchemas/app_cache_view_insert.sql
@@ -33,8 +33,7 @@ INSERT INTO APP_CACHE_VIEW (
     APP_FINISH_DATE,
     APP_UPDATE_DATE,
     APP_OVERDUE_PERCENTAGE,
-    DEL_LAST_INDEX,
-    TAS_DURATION
+    DEL_LAST_INDEX
 )
 
 SELECT
@@ -78,8 +77,7 @@ SELECT
   IF (APPLICATION.APP_STATUS = 'COMPLETED', APPLICATION.APP_FINISH_DATE, NULL),
   APPLICATION.APP_UPDATE_DATE,
   APP_DELEGATION.APP_OVERDUE_PERCENTAGE,
-  APP_DELEGATION.DEL_LAST_INDEX,
-  if (TASK.TAS_TIMEUNIT = "DAYS", TASK.TAS_DURATION, (TASK.TAS_DURATION/24))
+  APP_DELEGATION.DEL_LAST_INDEX
 FROM
   APPLICATION FORCE INDEX (PRIMARY)
   LEFT JOIN APP_DELEGATION ON (APPLICATION.APP_UID=APP_DELEGATION.APP_UID)
diff --git a/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationInsert.sql b/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationInsert.sql
index d6e79b344..2e142025e 100755
--- a/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationInsert.sql
+++ b/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationInsert.sql
@@ -12,7 +12,6 @@ BEGIN
   DECLARE PREVIOUS_USR_UID VARCHAR(32);
   DECLARE APP_DEL_PREVIOUS_USER VARCHAR(255);
   DECLARE APP_THREAD_STATUS VARCHAR(32);
-  DECLARE TAS_DURATION  DOUBLE;
   SET @DEFAULT_LANG = '{lang}';
   SET @APP_CURRENT_USER = '';
   SELECT APPLICATION.APP_NUMBER into @APP_NUMBER FROM APPLICATION WHERE APP_UID = NEW.APP_UID LIMIT 1;
@@ -43,8 +42,7 @@ BEGIN
     SET @APP_THREAD_STATUS = 'OPEN';
   END IF;
   SET @TAS_TYPE = (SELECT TAS_TYPE FROM TASK WHERE TAS_UID = NEW.TAS_UID LIMIT 1);
-  SELECT IF (TASK.TAS_TIMEUNIT = "DAYS", TASK.TAS_DURATION, (TASK.TAS_DURATION/24)) into @TAS_DURATION FROM TASK WHERE TAS_UID = NEW.TAS_UID LIMIT 1;
-  UPDATE APP_CACHE_VIEW SET DEL_LAST_INDEX = 0 WHERE APP_UID = NEW.APP_UID;  
+  UPDATE APP_CACHE_VIEW SET DEL_LAST_INDEX = 0 WHERE APP_UID = NEW.APP_UID;
   IF( @TAS_TYPE != 'SUBPROCESS') THEN
     INSERT INTO `APP_CACHE_VIEW`  (
     APP_UID,
@@ -77,8 +75,7 @@ BEGIN
     APP_FINISH_DATE,
     APP_UPDATE_DATE,
     APP_OVERDUE_PERCENTAGE,
-    DEL_LAST_INDEX,
-    TAS_DURATION
+    DEL_LAST_INDEX
   )
   VALUES (
     NEW.APP_UID,
@@ -111,8 +108,7 @@ BEGIN
     NULL,
     NOW(),
     NEW.APP_OVERDUE_PERCENTAGE,
-    NEW.DEL_LAST_INDEX,
-    @TAS_DURATION
+    NEW.DEL_LAST_INDEX
   );
  END IF;
 END
diff --git a/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationUpdate.sql b/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationUpdate.sql
index cf2b124c7..f5592c526 100755
--- a/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationUpdate.sql
+++ b/workflow/engine/methods/setup/setupSchemas/triggerAppDelegationUpdate.sql
@@ -12,7 +12,6 @@ BEGIN
   DECLARE PREVIOUS_USR_UID VARCHAR(32);
   DECLARE APP_DEL_PREVIOUS_USER VARCHAR(255);
   DECLARE APP_THREAD_STATUS VARCHAR(32);
-  DECLARE TAS_DURATION  DOUBLE;
   SET @DEFAULT_LANG = '{lang}';
   SET @APP_CURRENT_USER = '';
   SELECT APPLICATION.APP_NUMBER into @APP_NUMBER FROM APPLICATION WHERE APP_UID = NEW.APP_UID LIMIT 1;
@@ -43,7 +42,6 @@ BEGIN
     SET @APP_THREAD_STATUS = 'OPEN';
   END IF;
   SET @TAS_TYPE = (SELECT TAS_TYPE FROM TASK WHERE TAS_UID = NEW.TAS_UID LIMIT 1);
-  SELECT IF (TASK.TAS_TIMEUNIT = "DAYS", TASK.TAS_DURATION, (TASK.TAS_DURATION/24)) into @TAS_DURATION FROM TASK WHERE TAS_UID = NEW.TAS_UID LIMIT 1;
   IF( @TAS_TYPE != 'SUBPROCESS') THEN
     UPDATE `APP_CACHE_VIEW`
     SET
@@ -73,8 +71,7 @@ BEGIN
     DEL_DELAYED           =   NEW.DEL_DELAYED,
     APP_FINISH_DATE       =   NULL,
     APP_OVERDUE_PERCENTAGE =  NEW.APP_OVERDUE_PERCENTAGE,
-    DEL_LAST_INDEX        =   NEW.DEL_LAST_INDEX,
-    TAS_DURATION          =   @TAS_DURATION
+    DEL_LAST_INDEX        =   NEW.DEL_LAST_INDEX
   WHERE
     APP_UID = NEW.APP_UID
     AND DEL_INDEX =   NEW.DEL_INDEX;