From fad38b26ff2c24dda6d7e0169e25c12a50566602 Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Mon, 4 Jul 2022 08:44:06 +0800
Subject: [PATCH] Update mysql  bulkcopy

---
 Src/Asp.Net/MySqlTest/UnitTest/UBulkCopy.cs      | 16 ++++++++++++++++
 .../MySql/SqlBuilder/MySqlBlukCopy.cs            |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/Src/Asp.Net/MySqlTest/UnitTest/UBulkCopy.cs b/Src/Asp.Net/MySqlTest/UnitTest/UBulkCopy.cs
index f6604ffad..677f45a68 100644
--- a/Src/Asp.Net/MySqlTest/UnitTest/UBulkCopy.cs
+++ b/Src/Asp.Net/MySqlTest/UnitTest/UBulkCopy.cs
@@ -170,8 +170,24 @@ namespace OrmTest
             {
                 throw new Exception("unit error");
             }
+            db.CodeFirst.InitTables<UnitBulkdatedate2313111>();
+            db.DbMaintenance.TruncateTable<UnitBulkdatedate2313111>();
+            var bda =new List<UnitBulkdatedate2313111>{ new UnitBulkdatedate2313111()
+            {
+                Id = Guid.NewGuid()
+            } };
+            db.Fastest<UnitBulkdatedate2313111>().BulkCopy(bda);
+            var q = db.Queryable<UnitBulkdatedate2313111>().ToList();
 
         }
+        public class UnitBulkdatedate2313111
+        {
+            [SqlSugar.SugarColumn(IsPrimaryKey = true)]
+            public Guid Id { get; set; }
+            [SqlSugar.SugarColumn(IsNullable = true)]
+            public DateTime? table { get; set; }
+        }
+
         public class UnitBulk2313111
         {
             [SqlSugar.SugarColumn(IsPrimaryKey = true)]
diff --git a/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs b/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs
index 9312542c9..dcc087196 100644
--- a/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs
@@ -176,6 +176,10 @@ namespace SqlSugar
                     {
                         sb.Append(row[colum].ObjToDate().ToString("yyyy-MM-dd HH:mm:ss.fff"));
                     }
+                    else if (colum.DataType == UtilConstants.DateType && row[colum] != null && row[colum] == DBNull.Value)
+                    {
+                        sb.Append("NULL");
+                    }
                     else sb.Append(row[colum].ToString());
                 }
                 sb.AppendLine();