From 973b215d4624a8a98b895e2adbd1dd3874d5aa7a Mon Sep 17 00:00:00 2001
From: Ti Chi Robot <ti-community-prow-bot@tidb.io>
Date: Thu, 5 Sep 2024 18:08:57 +0800
Subject: [PATCH] core: fix missing update on nested generated column (#55829)
 (#55852)

close pingcap/tidb#53967
---
 planner/core/logical_plan_builder.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/planner/core/logical_plan_builder.go b/planner/core/logical_plan_builder.go
index ffce0b9daa26a..da6efb4d5d426 100644
--- a/planner/core/logical_plan_builder.go
+++ b/planner/core/logical_plan_builder.go
@@ -5981,6 +5981,9 @@ func (b *PlanBuilder) buildUpdateLists(ctx context.Context, tableList []*ast.Tab
 					break
 				}
 			}
+			if isModified {
+				dependentColumnsModified[col.UniqueID] = true
+			}
 			// skip unmodified generated columns
 			if !isModified {
 				continue