upgrade tidb from 4.0.16 to 6.4.0, admin show ddl jobs paniced

[aytrack]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1. deploy v4.0.16 cluster
2. execute sql

create table t(a int);
alter table t add index idx(a);

3. upgrade tidb to v6.4.0
4. execute sql

admin show ddl jobs 40;

2. What did you expect to see? (Required)

execute sql success

3. What did you see instead (Required)

TiDB root@172.16.4.131:test> admin show ddl jobs 40;
(1105, 'runtime error: invalid memory address or nil pointer dereference')

tidb log

[2022/11/08 19:47:28.548 +08:00] [ERROR] [adapter.go:150] ["execute sql panic"] [conn=5159016309664514451] [sql="admin show ddl jobs 40"] [stack="github.com/pingcap/tidb/executor.(*recordSet).Next.func1\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:150\nruntime.gopanic\n\t/usr/local/go/src/runtime/panic.go:884\nruntime.panicmem\n\t/usr/local/go/src/runtime/panic.go:260\nruntime.sigpanic\n\t/usr/local/go/src/runtime/signal_unix.go:835\ngithub.jparrowsec.cn/pingcap/tidb/executor.showAddIdxReorgTp\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:601\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*DDLJobRetriever).appendJobToChunk\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:564\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*ShowDDLJobsExec).Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:820\ngithub.jparrowsec.cn/pingcap/tidb/executor.Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:325\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*ExecStmt).next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:1118\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*recordSet).Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:153\ngithub.jparrowsec.cn/pingcap/tidb/server.(*tidbResultSet).Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/driver_tidb.go:409\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).writeChunks\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:2277\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).writeResultset\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:2220\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).handleStmt\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:2087\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).handleQuery\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1920\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).dispatch\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1374\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).Run\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1123\ngithub.jparrowsec.cn/pingcap/tidb/server.(*Server).onConn\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/server.go:625"]
[2022/11/08 19:47:28.549 +08:00] [INFO] [conn.go:1152] ["command dispatched failed"] [conn=5159016309664514451] [connInfo="id:5159016309664514451, addr:10.9.190.123:64420 status:10, collation:utf8_general_ci, user:root"] [command=Query] [status="inTxn:0, autocommit:1"] [sql="admin show ddl jobs 40"] [txn_mode=PESSIMISTIC] [timestamp=0] [err="runtime error: invalid memory address or nil pointer dereference\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*recordSet).Next.func1\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:149\nruntime.gopanic\n\t/usr/local/go/src/runtime/panic.go:884\nruntime.panicmem\n\t/usr/local/go/src/runtime/panic.go:260\nruntime.sigpanic\n\t/usr/local/go/src/runtime/signal_unix.go:835\ngithub.jparrowsec.cn/pingcap/tidb/executor.showAddIdxReorgTp\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:601\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*DDLJobRetriever).appendJobToChunk\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:564\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*ShowDDLJobsExec).Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:820\ngithub.jparrowsec.cn/pingcap/tidb/executor.Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/executor.go:325\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*ExecStmt).next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:1118\ngithub.jparrowsec.cn/pingcap/tidb/executor.(*recordSet).Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/adapter.go:153\ngithub.jparrowsec.cn/pingcap/tidb/server.(*tidbResultSet).Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/driver_tidb.go:409\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).writeChunks\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:2277\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).writeResultset\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:2220\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).handleStmt\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:2087\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).handleQuery\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1920\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).dispatch\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1374\ngithub.jparrowsec.cn/pingcap/tidb/server.(*clientConn).Run\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/conn.go:1123\ngithub.jparrowsec.cn/pingcap/tidb/server.(*Server).onConn\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/server/server.go:625\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1594"]

4. What is your TiDB version? (Required)

TiDB root@172.16.4.131:test> select tidb_version()\G
***************************[ 1. row ]***************************
tidb_version() | Release Version: v6.4.0
Edition: Community
Git Commit Hash: 2b8809023891997fb722a2c326f2608916e14101
Git Branch: heads/refs/tags/v6.4.0
UTC Build Time: 2022-11-07 13:34:49
GoVersion: go1.19.2
Race Enabled: false
TiKV Min Version: 6.2.0-alpha
Check Table Before Drop: false
Store: tikv

[bb7133]

According to the stack, I think it might be related to #38733, @tangenta PTAL