From 725e2e69395e18f0468558694bd03f23f395c9ea Mon Sep 17 00:00:00 2001
From: ywqzzy <592838129@qq.com>
Date: Mon, 25 Mar 2024 16:38:55 +0800
Subject: [PATCH] fix

---
 pkg/ddl/column.go | 9 +++++++++
 pkg/ddl/index.go  | 5 +++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/pkg/ddl/column.go b/pkg/ddl/column.go
index 0ce3042037c69..fb97f86a47bbc 100644
--- a/pkg/ddl/column.go
+++ b/pkg/ddl/column.go
@@ -2049,3 +2049,12 @@ func getChangingColumnOriginName(changingColumn *model.ColumnInfo) string {
 	}
 	return columnName[:pos]
 }
+
+func getExpressionIndexOriginName(expressionIdx *model.ColumnInfo) string {
+	columnName := strings.TrimPrefix(expressionIdx.Name.O, expressionIndexPrefix+"_")
+	var pos int
+	if pos = strings.LastIndex(columnName, "_"); pos == -1 {
+		return columnName
+	}
+	return columnName[:pos]
+}
diff --git a/pkg/ddl/index.go b/pkg/ddl/index.go
index 073b91c28d0d7..909c2fd277a9b 100644
--- a/pkg/ddl/index.go
+++ b/pkg/ddl/index.go
@@ -2568,8 +2568,9 @@ func renameIndexes(tblInfo *model.TableInfo, from, to model.CIStr) {
 
 func renameHiddenColumns(tblInfo *model.TableInfo, from, to model.CIStr) {
 	for _, col := range tblInfo.Columns {
-		if strings.Contains(col.Name.O, fmt.Sprintf("%s_%s", expressionIndexPrefix, from)) {
-			col.Name = model.NewCIStr(strings.ReplaceAll(col.Name.O, from.O, to.O))
+		if getExpressionIndexOriginName(col) == from.O {
+			col.Name.L = strings.Replace(col.Name.L, from.L, to.L, 1)
+			col.Name.O = strings.Replace(col.Name.O, from.O, to.O, 1)
 		}
 	}
 }