CREATE TABLESPACE — define a new tablespace
CREATE TABLESPACEtablespacename
[ OWNERusername
] LOCATION 'directory
'
CREATE TABLESPACE
registers a new cluster-wide
tablespace. The tablespace name must be distinct from the name of any
existing tablespace in the database cluster.
A tablespace allows superusers to define an alternative location on the file system where the data files containing database objects (such as tables and indexes) may reside.
A user with appropriate privileges can pass
tablespacename
to
CREATE DATABASE
, CREATE TABLE
,
CREATE INDEX
or ADD CONSTRAINT
to have the data
files for these objects stored within the specified tablespace.
tablespacename
The name of a tablespace to be created. The name cannot
begin with pg_
, as such names
are reserved for system tablespaces.
username
The name of the user who will own the tablespace. If omitted, defaults to the user executing the command. Only superusers may create tablespaces, but they can assign ownership of tablespaces to non-superusers.
directory
The directory that will be used for the tablespace. The directory must be empty and must be owned by the PostgreSQL system user. The directory must be specified by an absolute path name.
Tablespaces are only supported on systems that support symbolic links.
CREATE TABLESPACE
cannot be executed inside a transaction
block.