diff --git a/docker-compose.yml b/docker-compose.yml
index 53f1c3b..9eee211 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,6 +6,7 @@ services:
       - '80:4005'
     volumes:
       - .:/app/dtm
+    command: ['sh', '-c', 'go build app/main.go && go test ./dtmsvr']
   mysql:
     image: 'daocloud.io/mysql:5.7'
     environment:
diff --git a/dtmsvr/types.go b/dtmsvr/types.go
index 735203e..2a13f28 100644
--- a/dtmsvr/types.go
+++ b/dtmsvr/types.go
@@ -8,8 +8,8 @@ type M = map[string]interface{}
 
 type ModelBase struct {
 	ID         uint
-	CreateTime time.Time `gorm:"autoCreateTime"`
-	UpdateTime time.Time `gorm:"autoUpdateTime"`
+	CreateTime *time.Time `gorm:"autoCreateTime"`
+	UpdateTime *time.Time `gorm:"autoUpdateTime"`
 }
 type SagaModel struct {
 	ModelBase
@@ -17,8 +17,8 @@ type SagaModel struct {
 	Steps        string `json:"steps"`
 	TransQuery   string `json:"trans_query"`
 	Status       string `json:"status"`
-	FinishTime   time.Time
-	RollbackTime time.Time
+	FinishTime   *time.Time
+	RollbackTime *time.Time
 }
 
 func (*SagaModel) TableName() string {
@@ -33,8 +33,8 @@ type SagaStepModel struct {
 	Url          string
 	Type         string
 	Status       string
-	FinishTime   string
-	RollbackTime string
+	FinishTime   *time.Time
+	RollbackTime *time.Time
 }
 
 func (*SagaStepModel) TableName() string {