ddl: add check table compatibility for temporary table

errors.toml

@@ -1281,6 +1281,11 @@ error = '''
 Unknown SEQUENCE: '%-.300s'
 '''
 
+["schema:8003"]
+error = '''
+TiDB admin check table failed.
+'''
+
 ["schema:8020"]
 error = '''
 Table '%s' was locked in %s by %v

executor/admin_test.go

@@ -76,6 +76,15 @@ func (s *testSuite5) TestAdminCheckIndex(c *C) {
 	check()
 }
 
+func (s *testSuite5) TestAdminCheckIndexInTemporaryMode(c *C) {
+	tk := testkit.NewTestKit(c, s.store)
+	tk.MustExec("use test")
+	tk.MustExec("drop table if exists temporary_admin_test;")
+	tk.MustExec("create global temporary table temporary_admin_test (c1 int, c2 int, c3 int default 1, primary key (c1), index (c1), unique key(c2)) ON COMMIT DELETE ROWS;")
+	tk.MustExec("insert temporary_admin_test (c1, c2) values (1, 1), (2, 2), (3, 3);")
+	tk.MustGetErrCode("admin check table temporary_admin_test;", mysql.ErrAdminCheckTable)
+}
+
 func (s *testSuite5) TestAdminRecoverIndex(c *C) {
 	tk := testkit.NewTestKit(c, s.store)
 	tk.MustExec("use test")

executor/ddl.go

@@ -312,8 +312,12 @@ func (e *DDLExec) dropTableObject(objects []*ast.TableName, obt objectType, ifEx
 		if isSystemTable(tn.Schema.L, tn.Name.L) {
 			return errors.Errorf("Drop tidb system table '%s.%s' is forbidden", tn.Schema.L, tn.Name.L)
 		}
-
-		if obt == tableObject && config.CheckTableBeforeDrop {
+		tableInfo, err := e.is.TableByName(tn.Schema, tn.Name)
+		if err != nil {
+			return err
+		}
+		tempTableType := tableInfo.Meta().TempTableType
+		if obt == tableObject && config.CheckTableBeforeDrop && tempTableType != model.TempTableGlobal && tempTableType != model.TempTableLocal {
 			logutil.BgLogger().Warn("admin check table before drop",
 				zap.String("database", fullti.Schema.O),
 				zap.String("table", fullti.Name.O),

infoschema/error.go

@@ -69,4 +69,6 @@ var (
 	ErrTableLocked = dbterror.ClassSchema.NewStd(mysql.ErrTableLocked)
 	// ErrWrongObject returns when the table/view/sequence is not the expected object.
 	ErrWrongObject = dbterror.ClassSchema.NewStd(mysql.ErrWrongObject)
+	// ErrAdminCheckTable returns when the check table in temporary mode
+	ErrAdminCheckTable = dbterror.ClassSchema.NewStd(mysql.ErrAdminCheckTable)
 )

planner/core/planbuilder.go

@@ -1463,6 +1463,9 @@ func (b *PlanBuilder) buildAdminCheckTable(ctx context.Context, as *ast.AdminStm
 	if !ok {
 		return nil, infoschema.ErrTableNotExists.GenWithStackByArgs(tblName.DBInfo.Name.O, tableInfo.Name.O)
 	}
+	if tableInfo.TempTableType == model.TempTableGlobal || tableInfo.TempTableType == model.TempTableLocal {
+		return nil, infoschema.ErrAdminCheckTable
+	}
 	p := &CheckTable{
 		DBName: tblName.Schema.O,
 		Table:  tbl,