diff --git a/.drone.yml b/.drone.yml
index 78c386cb..300c7841 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -190,30 +190,6 @@ steps:
     - push
     - pull_request
 
-- name: test-mssql-nvarchar
-  pull: default
-  image: golang:1.12
-  depends_on:
-    - test-mssql
-  environment:
-    GO111MODULE: "on"
-    GOPROXY: "https://goproxy.cn"
-    TEST_MSSQL_HOST: mssql
-    TEST_MSSQL_DBNAME: xorm_test
-    TEST_MSSQL_USERNAME: sa
-    TEST_MSSQL_PASSWORD: "yourStrong(!)Password"
-    TEST_MSSQL_DEFAULT_VARCHAR: nvarchar
-    TEST_MSSQL_DEFAULT_CHAR: nchar
-  commands:
-  - make test-mssql
-  - TEST_CACHE_ENABLE=true make test-mssql
-  - TEST_QUOTE_POLICY=reserved make test-mssql
-  - TEST_MSSQL_DEFAULT_VARCHAR=NVARCHAR TEST_MSSQL_DEFAULT_CHAR=NCHAR make test-mssql
-  when:
-    event:
-    - push
-    - pull_request
-
 - name: test-tidb
   pull: default
   image: golang:1.12
diff --git a/Makefile b/Makefile
index ed873883..092f23b3 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,7 @@ TEST_MSSQL_USERNAME ?= sa
 TEST_MSSQL_PASSWORD ?= MwantsaSecurePassword1
 TEST_MSSQL_DEFAULT_VARCHAR ?= varchar
 TEST_MSSQL_DEFAULT_CHAR ?= char
+TEST_MSSQL_DO_NVARCHAR_OVERRIDE_TEST ?= true
 
 TEST_MYSQL_HOST ?= mysql:3306
 TEST_MYSQL_CHARSET ?= utf8
@@ -147,6 +148,7 @@ test-mssql: go-check
 	$(GO) test $(INTEGRATION_PACKAGES) -v -race -db=mssql -cache=$(TEST_CACHE_ENABLE) -quote=$(TEST_QUOTE_POLICY) \
 	-conn_str="server=$(TEST_MSSQL_HOST);user id=$(TEST_MSSQL_USERNAME);password=$(TEST_MSSQL_PASSWORD);database=$(TEST_MSSQL_DBNAME)" \
 	-default_varchar=$(TEST_MSSQL_DEFAULT_VARCHAR) -default_char=$(TEST_MSSQL_DEFAULT_CHAR) \
+	-do_nvarchar_override_test=$(TEST_MSSQL_DO_NVARCHAR_OVERRIDE_TEST) \
 	-coverprofile=mssql.$(TEST_QUOTE_POLICY).$(TEST_CACHE_ENABLE).coverage.out -covermode=atomic
 
 .PNONY: test-mssql\#%
@@ -154,6 +156,7 @@ test-mssql\#%: go-check
 	$(GO) test $(INTEGRATION_PACKAGES) -v -race -run $* -db=mssql -cache=$(TEST_CACHE_ENABLE) -quote=$(TEST_QUOTE_POLICY) \
 	-conn_str="server=$(TEST_MSSQL_HOST);user id=$(TEST_MSSQL_USERNAME);password=$(TEST_MSSQL_PASSWORD);database=$(TEST_MSSQL_DBNAME)" \
 	-default_varchar=$(TEST_MSSQL_DEFAULT_VARCHAR) -default_char=$(TEST_MSSQL_DEFAULT_CHAR) \
+	-do_nvarchar_override_test=$(TEST_MSSQL_DO_NVARCHAR_OVERRIDE_TEST) \
 	-coverprofile=mssql.$(TEST_QUOTE_POLICY).$(TEST_CACHE_ENABLE).coverage.out -covermode=atomic
 
 .PNONY: test-mymysql
diff --git a/integrations/session_schema_test.go b/integrations/session_schema_test.go
index e40bf3bf..d030c6a5 100644
--- a/integrations/session_schema_test.go
+++ b/integrations/session_schema_test.go
@@ -152,6 +152,61 @@ func TestSyncTable2(t *testing.T) {
 	assert.EqualValues(t, colMapper.Obj2Table("NewCol"), tables[0].Columns()[3].Name)
 }
 
+type SyncTable4 struct {
+	Id   int64
+	Name string
+	Text string `xorm:"TEXT"`
+	Char byte   `xorm:"CHAR"`
+}
+
+func (s *SyncTable4) TableName() string {
+	return "sync_table1"
+}
+
+func TestSyncTable3(t *testing.T) {
+	assert.NoError(t, PrepareEngine())
+
+	assert.NoError(t, testEngine.Sync2(new(SyncTable4)))
+
+	tables, err := testEngine.DBMetas()
+	assert.NoError(t, err)
+	assert.EqualValues(t, 1, len(tables))
+	assert.EqualValues(t, "sync_table1", tables[0].Name)
+	tableInfo, err := testEngine.TableInfo(new(SyncTable4))
+	assert.NoError(t, err)
+	assert.EqualValues(t, testEngine.Dialect().SQLType(tables[0].GetColumn("name")), testEngine.Dialect().SQLType(tableInfo.GetColumn("name")))
+
+	if *doNVarcharTest {
+		var oldDefaultVarchar string
+		var oldDefaultChar string
+		oldDefaultVarchar, *defaultVarchar = *defaultVarchar, "nvarchar"
+		oldDefaultChar, *defaultChar = *defaultChar, "nchar"
+		testEngine.Dialect().SetParams(map[string]string{
+			"DEFAULT_VARCHAR": *defaultVarchar,
+			"DEFAULT_CHAR":    *defaultChar,
+		})
+		defer func() {
+			*defaultVarchar = oldDefaultVarchar
+			*defaultChar = oldDefaultChar
+			testEngine.Dialect().SetParams(map[string]string{
+				"DEFAULT_VARCHAR": *defaultVarchar,
+				"DEFAULT_CHAR":    *defaultChar,
+			})
+		}()
+		assert.NoError(t, PrepareEngine())
+
+		assert.NoError(t, testEngine.Sync2(new(SyncTable4)))
+
+		tables, err := testEngine.DBMetas()
+		assert.NoError(t, err)
+		assert.EqualValues(t, 1, len(tables))
+		assert.EqualValues(t, "sync_table1", tables[0].Name)
+		tableInfo, err := testEngine.TableInfo(new(SyncTable4))
+		assert.NoError(t, err)
+		assert.EqualValues(t, testEngine.Dialect().SQLType(tables[0].GetColumn("name")), testEngine.Dialect().SQLType(tableInfo.GetColumn("name")))
+	}
+}
+
 func TestIsTableExist(t *testing.T) {
 	assert.NoError(t, PrepareEngine())
 
diff --git a/integrations/tests.go b/integrations/tests.go
index b135bd90..31fa99bf 100644
--- a/integrations/tests.go
+++ b/integrations/tests.go
@@ -35,6 +35,7 @@ var (
 	schema             = flag.String("schema", "", "specify the schema")
 	ignoreSelectUpdate = flag.Bool("ignore_select_update", false, "ignore select update if implementation difference, only for tidb")
 	ingoreUpdateLimit  = flag.Bool("ignore_update_limit", false, "ignore update limit if implementation difference, only for cockroach")
+	doNVarcharTest     = flag.Bool("do_nvarchar_override_test", false, "do nvarchar override test in sync table, only for mssql")
 	quotePolicyStr     = flag.String("quote", "always", "quote could be always, none, reversed")
 	defaultVarchar     = flag.String("default_varchar", "varchar", "default varchar type, mssql only, could be varchar or nvarchar, default is varchar")
 	defaultChar        = flag.String("default_char", "char", "default char type, mssql only, could be char or nchar, default is char")