From 28f651490c337d6cb1818a96e4a491fb325db7d7 Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Sun, 21 May 2023 18:04:43 +0800
Subject: [PATCH] Update mysql

---
 Src/Asp.Net/MySqlTest/Demo/Demo2_Updateable.cs         | 10 ++++++++++
 .../Realization/MySql/SqlBuilder/MySqlUpdateBuilder.cs |  9 ++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/Src/Asp.Net/MySqlTest/Demo/Demo2_Updateable.cs b/Src/Asp.Net/MySqlTest/Demo/Demo2_Updateable.cs
index 739f0857e..7351138c1 100644
--- a/Src/Asp.Net/MySqlTest/Demo/Demo2_Updateable.cs
+++ b/Src/Asp.Net/MySqlTest/Demo/Demo2_Updateable.cs
@@ -64,6 +64,16 @@ namespace OrmTest
              .PublicSetColumns(it => it.Price, it => it.Price + 1)
              .ExecuteCommand();
 
+            var list = db.Queryable<Order>().OrderBy(it => it.Id).Take(2).ToList();
+            if (list.Count >= 2)
+            {
+                list[0].Price = 10;
+                list[1].Price = 2;
+                var result69 =
+                db.Updateable(list)
+                .PublicSetColumns(it => it.Price, "+")
+                .ExecuteCommand();
+            }
 
             /*** 2.by expression ***/
 
diff --git a/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlUpdateBuilder.cs b/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlUpdateBuilder.cs
index 1bca030ed..e50dee77c 100644
--- a/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlUpdateBuilder.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlUpdateBuilder.cs
@@ -109,7 +109,14 @@ namespace SqlSugar
                 foreach (var item in ReSetValueBySqlExpList)
                 {
                     var dbColumnName = item.Value.DbColumnName;
-                    result = result.Replace($"T.{dbColumnName}", item.Value.Sql.Replace(dbColumnName, "S." + dbColumnName));
+                    if (item.Value.Type == ReSetValueBySqlExpListModelType.List)
+                    {
+                        result = result.Replace($"T.{dbColumnName}",   "S." + dbColumnName+item.Value.Sql+ "T." + dbColumnName);
+                    }
+                    else
+                    {
+                        result = result.Replace($"T.{dbColumnName}", item.Value.Sql.Replace(dbColumnName, "S." + dbColumnName));
+                    }
                     batchUpdateSql = new StringBuilder(result);
                 }
             }