From ef81f61ada7b4542cf9fbde1343bfca162ea4301 Mon Sep 17 00:00:00 2001
From: Lunny Xiao <xiaolunwen@gmail.com>
Date: Tue, 3 Aug 2021 23:17:49 +0800
Subject: [PATCH] Fix mssql timestamp

---
 dialects/mssql.go | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/dialects/mssql.go b/dialects/mssql.go
index 0eeb1bcd..584ea61e 100644
--- a/dialects/mssql.go
+++ b/dialects/mssql.go
@@ -313,8 +313,12 @@ func (db *mssql) SQLType(c *schemas.Column) string {
 		if c.Length == 0 {
 			res += "(MAX)"
 		}
-	case schemas.TimeStamp:
-		res = schemas.DateTime
+	case schemas.TimeStamp, schemas.DateTime:
+		if c.Length > 3 {
+			res = "DATETIME2"
+		} else {
+			res = schemas.DateTime
+		}
 	case schemas.TimeStampz:
 		res = "DATETIMEOFFSET"
 		c.Length = 7
@@ -357,7 +361,7 @@ func (db *mssql) SQLType(c *schemas.Column) string {
 		res = t
 	}
 
-	if res == schemas.Int || res == schemas.Bit || res == schemas.DateTime {
+	if res == schemas.Int || res == schemas.Bit {
 		return res
 	}