From e66cfc3aa5e59aa12b729543e0b00e6cb1bfcc22 Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Mon, 21 Aug 2017 13:34:26 +0800
Subject: [PATCH] -

---
 Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs b/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
index 3a10e5e48..43d4fa465 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
@@ -239,6 +239,9 @@ namespace SqlSugar
                 string columnName = this.SqlBuilder.GetTranslationTableName(item.DbColumnName);
                 string dataType = item.DataType;
                 string dataSize = item.Length > 0 ? string.Format("({0})", item.Length) : null;
+                if (item.Length>4000|| item.Length==-1) {
+                    dataSize = string.Format("({0})","max");
+                }
                 string nullType = item.IsNullable ? this.CreateTableNull : CreateTableNotNull;
                 string primaryKey = null;
                 string identity = item.IsIdentity ? this.CreateTableIdentity : null;