HCC compression on Oracle Live SQL

create table t1_nocompress as select * from 
 (select rownum t1_id, object_id p1, object_name p2, owner p3 from all_objects),(select rownum from dual CONNECT BY LEVEL <=2);
 
 select segment_name,blocks,bytes/1024 bytes_k from user_segments;
 

drop table t1_nocompress purge;
 
 create table t1_advcompress row store compress advanced as select * from 
 (select rownum t1_id, object_id p1, object_name p2, owner p3 from all_objects),(select rownum from dual CONNECT BY LEVEL <=2);
 

drop table t1_advcompress purge;
 
 create table t1_hccquerylow column store compress for query low as select * from 
 (select rownum t1_id, object_id p1, object_name p2, owner p3 from all_objects),(select rownum from dual CONNECT BY LEVEL <=2);
 

drop table t1_hccquerylow purge;
 
 create table t1_hccqueryhigh column store compress for query high as select * from 
 (select rownum t1_id, object_id p1, object_name p2, owner p3 from all_objects),(select rownum from dual CONNECT BY LEVEL <=2);
 

drop table t1_hccqueryhigh purge;
 
 create table t1_hccqueryhigh column store compress for query high as select * from 
 (select rownum t1_id, object_id p1, object_name p2, owner p3 from all_objects),(select rownum from dual CONNECT BY LEVEL <=20);
 
 select count(*) from t1_hccqueryhigh;