diff --git a/db/update20.0.sql b/db/update20.0.sql
index 4ea9834f40..c33996235b 100644
--- a/db/update20.0.sql
+++ b/db/update20.0.sql
@@ -106,7 +106,6 @@ CREATE TABLE `zt_issue` (
   `severity` char(30) NOT NULL,
   `type` char(30) NOT NULL,
   `activity` varchar(255) NOT NULL,
-  `effectedArea` varchar(255) NOT NULL,
   `deadline` date NOT NULL,
   `resolution` char(30) NOT NULL,
   `resolutionComment` text NOT NULL,
@@ -122,8 +121,6 @@ CREATE TABLE `zt_issue` (
   `activateDate` date NOT NULL,
   `closeBy` varchar(30) NOT NULL,
   `closedDate` date NOT NULL,
-  `commitBy` varchar(30) NOT NULL,
-  `commitDate` datetime NOT NULL,
   `assignedTo` varchar(30) NOT NULL,
   `assignedBy` varchar(30) NOT NULL,
   `assignedDate` datetime NOT NULL,
diff --git a/db/zentao.sql b/db/zentao.sql
index 8259b04cb5..4dc7a61018 100644
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -527,7 +527,6 @@ CREATE TABLE `zt_issue` (
   `severity` char(30) NOT NULL,
   `type` char(30) NOT NULL,
   `activity` varchar(255) NOT NULL,
-  `effectedArea` varchar(255) NOT NULL,
   `deadline` date NOT NULL,
   `resolution` char(30) NOT NULL,
   `resolutionComment` text NOT NULL,
@@ -543,8 +542,6 @@ CREATE TABLE `zt_issue` (
   `activateDate` date NOT NULL,
   `closeBy` varchar(30) NOT NULL,
   `closedDate` date NOT NULL,
-  `commitBy` varchar(30) NOT NULL,
-  `commitDate` datetime NOT NULL,
   `assignedTo` varchar(30) NOT NULL,
   `assignedBy` varchar(30) NOT NULL,
   `assignedDate` datetime NOT NULL,