text: --Test for 'CREATE INDEX' query updates only statistics for its B-tree 
  --+ holdcas on;
  create table tbl_1 (a int, b int);
  create index idxa on tbl_1(a);
  
  insert into tbl_1 values (1,2), (2,3), (3,4), (4,5), (5,6);
  show index in tbl_1;
  
  
  create table tbl_2 (a int);
  insert into tbl_2 values (1), (2), (3);
  create index idxa on tbl_2(a);
  show index in tbl_2;
  
  
  create table tbl_3 (a int, b int);
  insert into tbl_3 values (1,2), (2,3), (3,4), (4,5), (5,6);
  create index idxa on tbl_3(a);
  create index idxb on tbl_3(b);
  show index in tbl_3;
  
  drop table tbl_1;
  drop table tbl_2;
  drop table tbl_3;
  
  commit;
  
  --+ holdcas off;