From 95ceffdc42c6d09def34c0dbf88632f331bb365b Mon Sep 17 00:00:00 2001
From: tangenta <tangenta@126.com>
Date: Tue, 14 Feb 2023 19:06:10 +0800
Subject: [PATCH] ddl: set request source for cop requests that are used in
 adding index (#41401)

close pingcap/tidb#41400
---
 ddl/index_cop.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ddl/index_cop.go b/ddl/index_cop.go
index fab097727139b..da9d4e397a6cb 100644
--- a/ddl/index_cop.go
+++ b/ddl/index_cop.go
@@ -428,6 +428,8 @@ func (c *copContext) buildTableScan(ctx context.Context, startTS uint64, start,
 		SetFromInfoSchema(c.sessCtx.GetDomainInfoSchema()).
 		SetConcurrency(1).
 		Build()
+	kvReq.RequestSource.RequestSourceInternal = true
+	kvReq.RequestSource.RequestSourceType = getDDLRequestSource(model.ActionAddIndex)
 	if err != nil {
 		return nil, err
 	}