ALTER TABLESPACE — change the definition of a tablespace
ALTER TABLESPACEname
RENAME TOnew_name
ALTER TABLESPACEname
OWNER TOnew_owner
ALTER TABLESPACEname
SET (tablespace_option
=value
[, ... ] ) ALTER TABLESPACEname
RESET (tablespace_option
[, ... ] )
ALTER TABLESPACE can be used to change the definition of a tablespace.
You must own the tablespace to change the definition of a tablespace. To alter the owner, you must also be a direct or indirect member of the new owning role. (Note that superusers have these privileges automatically.)
name
The name of an existing tablespace.
new_name
The new name of the tablespace. The new name cannot
begin with pg_
, as such names
are reserved for system tablespaces.
new_owner
The new owner of the tablespace.
tablespace_option
A tablespace parameter to be set or reset. Currently, the only
available parameters are seq_page_cost
and
random_page_cost
. Setting either value for a particular
tablespace will override the planner's usual estimate of the cost of
reading pages from tables in that tablespace, as established by
the configuration parameters of the same name (see
seq_page_cost,
random_page_cost). This may be useful if one
tablespace is located on a disk which is faster or slower than the
remainder of the I/O subsystem.