Questions about database filegroups

tttttt0122

alter database Northwind
                add filegroup SECONDARY
                go

alter database northwind
add file
(name = scndr,
filename = 'f:\nthwndScnd',
size = 1Mb,
maxsize = 10Mb,
filegrowth = 10%)

use northwind
go
                CREATE TABLE tbl1
                (col1 int CONSTRAINT pk_column01
                                    PRIMARY KEY
                                    WITH FILLFACTOR = 50
                                    ON SECONDARY, --I would like to ask whether the index is added to the file group secondary, or is this table placed in the secondary?
                col2 int
                )

我是杀人狂

Primary key constraints.