diff --git a/trunk/db/update0.5.sql b/trunk/db/update0.5.sql
index 96491e2bdc..bf097cb097 100644
--- a/trunk/db/update0.5.sql
+++ b/trunk/db/update0.5.sql
@@ -1,20 +1,2 @@
--- 20100226 add start and end date field to task.
-/**ALTER TABLE `zt_task` ADD `deadline` DATE NOT NULL AFTER `left`;
-ALTER TABLE `zt_task` CHANGE `owner` `assignedTo` CHAR( 30 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
-ALTER TABLE `zt_task` ADD `openedBy` CHAR( 30 ) NOT NULL AFTER `pri` ,
-ADD `openedDate` DATETIME NOT NULL AFTER `openedBy` ;
-ALTER TABLE `zt_task` ADD `assignedDate` DATETIME NOT NULL AFTER `assignedTo`;
-ALTER TABLE `zt_task` ADD `lastEditedBy` CHAR( 30 ) NOT NULL AFTER `assignedDate` ,
-ADD `lastEditedDate` DATETIME NOT NULL AFTER `lastEditedBy` ,
-ADD `closedBy` CHAR( 30 ) NOT NULL AFTER `lastEditedDate` ,
-ADD `closedDate` DATETIME NOT NULL AFTER `closedBy`;
-ALTER TABLE `zt_task` ADD `closedReason` CHAR( 30 ) NOT NULL AFTER `closedDate`;
-ALTER TABLE `zt_task` CHANGE `status` `status` VARCHAR( 30 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'wait';
-
-update zt_task, zt_action 
-set zt_task.openedBy = zt_action.actor , zt_task.openedDate = zt_action.date
-where zt_task.id = zt_action.objectID and zt_action.objectType = 'task' and zt_action.action='opened'*/
 ALTER TABLE `zt_task` ADD `deadline` DATE NOT NULL AFTER `left` ;
-
--- 20100301 change the openedbuild field.
 ALTER TABLE `zt_bug` CHANGE `openedBuild` `openedBuild` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL