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ALTER TABLESPACE

Changes the definition of a tablespace.

Synopsis

ALTER TABLESPACE <name> RENAME TO <new_name>

ALTER TABLESPACE <name> OWNER TO <new_owner>

ALTER TABLESPACE <name> SET ( <tablespace_option> = <value> [, ... ] )

ALTER TABLESPACE <name> RESET ( <tablespace_option> [, ... ] )

Description

ALTER TABLESPACE changes the definition of a tablespace.

You must own the tablespace to use ALTER 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

Parameter Description

name

The name of an existing tablespace

new_name

The new name of the tablespace The new name cannot begin with pg_ or gp_ (reserved for system tablespaces)

new_owner

The new owner of the tablespace

tablespace_option

A tablespace parameter to 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 (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

Examples

Rename the index_space tablespace to fast_raid:

ALTER TABLESPACE index_space RENAME TO fast_raid;

Change the owner of the index_space tablespace:

ALTER TABLESPACE index_space OWNER TO mary;

Compatibility

There is no ALTER TABLESPACE statement in the SQL standard.

See also

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ALTER TABLE
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ALTER TEXT SEARCH CONFIGURATION