From 427bd41ac7b27b419cd7917c66d3d2d18823eb22 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E8=AF=97=E5=B3=A3?= <wangshiyao@wangshiyao.com>
Date: Sat, 16 Dec 2023 03:36:59 +0800
Subject: [PATCH] Fixed bug with "RETURNING" clause of EFCore

---
 EFCore/src/Update/MySQLUpdateSqlGenerator.cs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/EFCore/src/Update/MySQLUpdateSqlGenerator.cs b/EFCore/src/Update/MySQLUpdateSqlGenerator.cs
index 3487e1cea..299871c56 100644
--- a/EFCore/src/Update/MySQLUpdateSqlGenerator.cs
+++ b/EFCore/src/Update/MySQLUpdateSqlGenerator.cs
@@ -551,6 +551,19 @@ internal enum ResultsGrouping
       }
     }
 
+    protected override void AppendReturningClause(StringBuilder commandStringBuilder, IReadOnlyList<IColumnModification> operations, string? additionalValues = null)
+    {
+      if (additionalValues is not null)
+      {
+        if (operations.Count > 0)
+        {
+          commandStringBuilder.Append(", ");
+        }
+
+        commandStringBuilder.Append('1');
+      }
+    }
+
     private void AppendRowsAffectedWhereCondition(StringBuilder commandStringBuilder, int expectedRowsAffected)
     {
       Check.NotNull(commandStringBuilder, "commandStringBuilder");