From 36e8e3492e90489ae2a3048aa1ca4e0bb11b71ae Mon Sep 17 00:00:00 2001
From: ystaticy <y_static_y@sina.com>
Date: Fri, 17 Jan 2025 12:46:25 +0800
Subject: [PATCH] ddl: filter zero job IDs when puting
 `DDLAllSchemaVersionsByJob` key (#58991)

ref pingcap/tidb#58992
---
 pkg/ddl/schemaver/syncer.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/ddl/schemaver/syncer.go b/pkg/ddl/schemaver/syncer.go
index d82a6bbab015c..0ce5258a1030b 100644
--- a/pkg/ddl/schemaver/syncer.go
+++ b/pkg/ddl/schemaver/syncer.go
@@ -280,6 +280,10 @@ func (s *etcdSyncer) UpdateSelfVersion(ctx context.Context, jobID int64, version
 	var err error
 	var path string
 	if variable.EnableMDL.Load() {
+		// If jobID is 0, it doesn't need to put into etcd `DDLAllSchemaVersionsByJob` key.
+		if jobID == 0 {
+			return nil
+		}
 		path = fmt.Sprintf("%s/%d/%s", util.DDLAllSchemaVersionsByJob, jobID, s.ddlID)
 		err = util.PutKVToEtcdMono(ctx, s.etcdCli, keyOpDefaultRetryCnt, path, ver)
 	} else {