From 361409ba898d1c448a3eb7ed14cf494ed6c0bb86 Mon Sep 17 00:00:00 2001
From: Lunny Xiao <xiaolunwen@gmail.com>
Date: Thu, 10 Oct 2019 19:34:10 +0800
Subject: [PATCH] fix alias on mssql

---
 session_update.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/session_update.go b/session_update.go
index 81dcc800..d6aa1f61 100644
--- a/session_update.go
+++ b/session_update.go
@@ -379,7 +379,12 @@ func (session *Session) Update(bean interface{}, condiBean ...interface{}) (int6
 
 	var tableAlias = session.engine.Quote(tableName)
 	if session.statement.TableAlias != "" {
-		tableAlias = fmt.Sprintf("%s AS %s", tableAlias, session.statement.TableAlias)
+		switch session.engine.dialect.DBType() {
+		case core.MSSQL:
+			tableAlias = fmt.Sprintf("%s %s", tableAlias, session.statement.TableAlias)
+		default:
+			tableAlias = fmt.Sprintf("%s AS %s", tableAlias, session.statement.TableAlias)
+		}
 	}
 
 	sqlStr = fmt.Sprintf("UPDATE %v%v SET %v %v",