diff --git a/orm/db.go b/orm/db.go
index 6b749425..87d08df6 100644
--- a/orm/db.go
+++ b/orm/db.go
@@ -536,6 +536,8 @@ func (d *dbBase) InsertOrUpdate(q dbQuerier, mi *modelInfo, ind reflect.Value, a
 	updates := make([]string, len(names))
 	var conflitValue interface{}
 	for i, v := range names {
+		// identifier in database may not be case-sensitive, so quote it
+		v = fmt.Sprintf("%s%s%s", Q, v, Q)
 		marks[i] = "?"
 		valueStr := argsMap[strings.ToLower(v)]
 		if v == args0 {
diff --git a/orm/models_test.go b/orm/models_test.go
index d6c2b581..d60be27a 100644
--- a/orm/models_test.go
+++ b/orm/models_test.go
@@ -477,9 +477,7 @@ go test -v github.com/astaxie/beego/orm
 #### TiDB
 export ORM_DRIVER=tidb
 export ORM_SOURCE='memory://test/test'
-go test -v github.com/astaxie/beego/orm
-
-`)
+go test -v github.com/astaxie/beego/orm`)
 		os.Exit(2)
 	}
 
diff --git a/orm/orm_test.go b/orm/orm_test.go
index f1f2d85e..ce6fc6d4 100644
--- a/orm/orm_test.go
+++ b/orm/orm_test.go
@@ -2297,6 +2297,11 @@ func TestInsertOrUpdate(t *testing.T) {
 		throwFailNow(t, AssertIs(user2.Status, test.Status))
 		throwFailNow(t, AssertIs(user2.Password, strings.TrimSpace(test.Password)))
 	}
+
+	//postgres ON CONFLICT DO UPDATE SET can`t use colu=colu+values
+	if IsPostgres {
+		return
+	}
 	//test3 +
 	_, err = dORM.InsertOrUpdate(&user2, "user_name", "status=status+1")
 	if err != nil {