CREATE TABLESPACE(7) PostgreSQL 9.6.6 Documentation CREATE TABLESPACE(7)
NAME
CREATE_TABLESPACE - define a new tablespace
SYNOPSIS
CREATE TABLESPACE tablespace_name
[ OWNER { new_owner | CURRENT_USER | SESSION_USER } ]
LOCATION 'directory'
[ WITH ( tablespace_option = value [, ... ] ) ]
DESCRIPTION
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) can reside.
A user with appropriate privileges can pass tablespace_name to CREATE
DATABASE, CREATE TABLE, CREATE INDEX or ADD CONSTRAINT to have the data
files for these objects stored within the specified tablespace.
Warning
A tablespace cannot be used independently of the cluster in which
it is defined; see Section 22.6, "Tablespaces", in the
documentation.
PARAMETERS
tablespace_name
The name of a tablespace to be created. The name cannot begin with
pg_, as such names are reserved for system tablespaces.
user_name
The name of the user who will own the tablespace. If omitted,
defaults to the user executing the command. Only superusers can
create tablespaces, but they can assign ownership of tablespaces to
non-superusers.
directory
The directory that will be used for the tablespace. The directory
should be empty and must be owned by the PostgreSQL system user.
The directory must be specified by an absolute path name.
tablespace_option
A tablespace parameter to be set or reset. Currently, the only
available parameters are seq_page_cost, random_page_cost and
effective_io_concurrency. 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, effective_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.
NOTES
Tablespaces are only supported on systems that support symbolic links.
CREATE TABLESPACE cannot be executed inside a transaction block.
EXAMPLES
Create a tablespace dbspace at /data/dbs:
CREATE TABLESPACE dbspace LOCATION '/data/dbs';
Create a tablespace indexspace at /data/indexes owned by user
genevieve:
CREATE TABLESPACE indexspace OWNER genevieve LOCATION '/data/indexes';
COMPATIBILITY
CREATE TABLESPACE is a PostgreSQL extension.
SEE ALSO
CREATE DATABASE (CREATE_DATABASE(7)), CREATE TABLE (CREATE_TABLE(7)),
CREATE INDEX (CREATE_INDEX(7)), DROP TABLESPACE (DROP_TABLESPACE(7)),
ALTER TABLESPACE (ALTER_TABLESPACE(7))
PostgreSQL 9.6.6 2017 CREATE TABLESPACE(7)
PostgreSQL 9.6.6 - Generated Sat Dec 2 07:41:29 CST 2017