Peter Eisentraut <peter_e@gmx.net> writes:
> What about a feature to set a default tablespace just for indexes?
Well, for one thing it would break existing dumps, since pg_dump expects
that "SET default_tablespace" works for indexes and tables both.
This has been suggested and rejected multiple times before, eg,
http://archives.postgresql.org/pgsql-general/2007-10/msg00141.php
regards, tom lane