ALTER TABLESPACE — change the definition of a tablespace
ALTER TABLESPACEname
RENAME TOnew_name
ALTER TABLESPACEname
OWNER TO {new_owner
| CURRENT_ROLE | CURRENT_USER | SESSION_USER } 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
,
random_page_cost
, effective_io_concurrency
and maintenance_io_concurrency
.
Setting these values for a particular tablespace will override the
planner's usual estimate of the cost of reading pages from tables in
that tablespace, and the executor's prefetching behavior, as established
by the configuration parameters of the
same name (see seq_page_cost,
random_page_cost,
effective_io_concurrency,
maintenance_io_concurrency). 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.
Rename tablespace index_space
to fast_raid
:
ALTER TABLESPACE index_space RENAME TO fast_raid;
Change the owner of tablespace index_space
:
ALTER TABLESPACE index_space OWNER TO mary;
There is no ALTER TABLESPACE
statement in
the SQL standard.