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ALTER TABLESPACE
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ALTER TABLESPACE

ALTER TABLESPACE — change the definition of a tablespace

Synopsis

ALTER TABLESPACEname RENAME TOnew_nameALTER TABLESPACEname OWNER TO {new_owner | CURRENT_USER | SESSION_USER }ALTER TABLESPACEname SET (tablespace_option =value [, ... ] )ALTER TABLESPACEname RESET (tablespace_option [, ... ] )

Description

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.)

Parameters

name: The name of an existing tablespace.
new_name: The new name of the tablespace. The new name cannot begin withpg_, 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 areseq_page_cost andrandom_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 (seeseq_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.

Examples

Rename tablespaceindex_space tofast_raid:

ALTER TABLESPACE index_space RENAME TO fast_raid;

Change the owner of tablespaceindex_space:

ALTER TABLESPACE index_space OWNER TO mary;

Compatibility

There is noALTER TABLESPACE statement in the SQL standard.