query concerning vacuum and tablespaces - Mailing list pgsql-admin

Hi

I have two general questions:

Let's say I vacuum a table called 'foo'.  Does that release memory for
subsequent reuse by table 'barr'?  Or is the marked memory restricted
solely for later reuse by table 'foo'?  I get the impression the latter
is the case.  I'm I mistaken?

 Is it possible to move an already populated table or index from one
tablespace to another?

Thanks so much!