Index rebuild after unusable doesn't reuse space

Hi everybody.

I've noticed that after a

alter index t_i unusable;

if I issue an

alter index t_i rebuild;

Oracle leaves the space occupied by the index empty and allocates new space. (Doubling the total space needed for the index). Is it a normal behavior?
Is there a way to avoid this?

Thank you.

Kamal Received on Wed Jan 12 2005 - 05:23:52 CST