for example I missing this index:
create index test.test_reg_pk_on_test.test_reg (rg_ken, guel_bis)
logging
tablespace data
pctfree 10
initrans 2
maxtrans 255
storage (
Initial 64K
next 1M
maxsize unlimited
minextents 1
maxextents unlimited
pctincrease 0
buffer_pool default
);