diff --git a/pkg/ddl/table.go b/pkg/ddl/table.go
index a53946e7d7bf9..90a97822a46de 100644
--- a/pkg/ddl/table.go
+++ b/pkg/ddl/table.go
@@ -742,11 +742,12 @@ func onRenameTable(jobCtx *jobContext, t *meta.Meta, job *model.Job) (ver int64,
 		return ver, errors.Trace(err)
 	}
 
+	oldSchemaID, oldSchemaName, tableName := args.OldSchemaID, args.OldSchemaName, args.NewTableName
 	if job.SchemaState == model.StatePublic {
 		return finishJobRenameTable(jobCtx, t, job)
 	}
 	newSchemaID := job.SchemaID
-	err = checkTableNotExists(jobCtx.infoCache, newSchemaID, args.NewTableName.L)
+	err = checkTableNotExists(jobCtx.infoCache, newSchemaID, tableName.L)
 	if err != nil {
 		if infoschema.ErrDatabaseNotExists.Equal(err) || infoschema.ErrTableExists.Equal(err) {
 			job.State = model.JobStateCancelled
@@ -754,18 +755,18 @@ func onRenameTable(jobCtx *jobContext, t *meta.Meta, job *model.Job) (ver int64,
 		return ver, errors.Trace(err)
 	}
 
-	tblInfo, err := GetTableInfoAndCancelFaultJob(t, job, args.OldSchemaID)
+	tblInfo, err := GetTableInfoAndCancelFaultJob(t, job, oldSchemaID)
 	if err != nil {
 		return ver, errors.Trace(err)
 	}
 	oldTableName := tblInfo.Name
-	ver, err = checkAndRenameTables(t, job, tblInfo, args.OldSchemaID, job.SchemaID, &args.OldSchemaName, &args.NewTableName)
+	ver, err = checkAndRenameTables(t, job, tblInfo, oldSchemaID, job.SchemaID, &oldSchemaName, &tableName)
 	if err != nil {
 		return ver, errors.Trace(err)
 	}
 	fkh := newForeignKeyHelper()
 	err = adjustForeignKeyChildTableInfoAfterRenameTable(jobCtx.infoCache, t,
-		job, &fkh, tblInfo, args.OldSchemaName, oldTableName, args.NewTableName, newSchemaID)
+		job, &fkh, tblInfo, oldSchemaName, oldTableName, tableName, newSchemaID)
 	if err != nil {
 		return ver, errors.Trace(err)
 	}
diff --git a/pkg/meta/model/job_args.go b/pkg/meta/model/job_args.go
index b21fae9f6fa8b..f0442433bf369 100644
--- a/pkg/meta/model/job_args.go
+++ b/pkg/meta/model/job_args.go
@@ -325,7 +325,7 @@ func GetFinishedTruncateTableArgs(job *Job) (*TruncateTableArgs, error) {
 }
 
 func getTruncateTableArgs(job *Job, argsOfFinished bool) (*TruncateTableArgs, error) {
-	if job.Version <= JobVersion1 {
+	if job.Version == JobVersion1 {
 		if argsOfFinished {
 			var startKey []byte
 			var oldPartitionIDs []int64
@@ -380,18 +380,10 @@ func GetRenameTableArgs(job *Job) (*RenameTableArgs, error) {
 
 	if job.Version == JobVersion1 {
 		// decode args and cache in args.
-		if len(job.Args) == 0 {
-			err := job.DecodeArgs(&oldSchemaID, &newTableName, &oldSchemaName)
-			if err != nil {
-				return nil, errors.Trace(err)
-			}
-			job.Args = []any{oldSchemaID, newTableName, oldSchemaName}
-		} else {
-			oldSchemaID = job.Args[0].(int64)
-			newTableName = job.Args[1].(pmodel.CIStr)
-			oldSchemaName = job.Args[2].(pmodel.CIStr)
+		err := job.DecodeArgs(&oldSchemaID, &newTableName, &oldSchemaName)
+		if err != nil {
+			return nil, errors.Trace(err)
 		}
-
 		args := RenameTableArgs{
 			OldSchemaID:   oldSchemaID,
 			OldSchemaName: oldSchemaName,
@@ -410,7 +402,7 @@ func UpdateRenameTableArgs(job *Job) error {
 	var err error
 
 	// for job version1
-	if job.Version <= JobVersion1 {
+	if job.Version == JobVersion1 {
 		// update schemaID and marshal()
 		job.Args[0] = job.SchemaID
 		job.RawArgs, err = json.Marshal(job.Args)
diff --git a/pkg/meta/model/job_args_test.go b/pkg/meta/model/job_args_test.go
index 14ca86a9a66dc..1235a9ddfafb3 100644
--- a/pkg/meta/model/job_args_test.go
+++ b/pkg/meta/model/job_args_test.go
@@ -243,18 +243,13 @@ func TestRenameTableArgs(t *testing.T) {
 		}
 		job.FillArgs(inArgs)
 
-		// get the args from args
-		args, err := GetRenameTableArgs(job)
-		require.NoError(t, err)
-		require.Equal(t, args, inArgs)
-
 		// encode job
-		_, err = job.Encode(true)
+		_, err := job.Encode(true)
 		require.NoError(t, err)
 		job.Args = nil
 
 		// get the args after decode
-		args, err = GetRenameTableArgs(job)
+		args, err := GetRenameTableArgs(job)
 		require.NoError(t, err)
 		require.Equal(t, args, inArgs)