change the column name via exchange partition

        create table base_table (
               col1    number(5) constraint pk_bt primary key,
               col2    number(5),
               clo3    number(5)
        );
        
        create table pt_table (
               col1    number(5) constraint pk_pt primary key using index local,
               col2    number(5),
               col3    number(5)
        )
        partition by range (col1) (
        partition p1 values less than (maxvalue)
        );
        
        alter table pt_table 
        exchange partition p1 with table base_table
        including indexes without validation;
        
        drop table base_table;
        create table base_table (
               col1    number(5) constraint pk_bt primary key,
               col2    number(5),
               col3    number(5)
        );
        
        alter table pt_table 
        exchange partition p1 with table base_table
        including indexes without validation;