PostgreSQL - SQL Language Reference

PostgreSQL Reference Manual - Volume 1 - SQL Language Reference
by The PostgreSQL Global Development Group
Paperback (6"x9"), 716 pages
ISBN 0954612027
RRP £32.00 ($49.95)

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PostgreSQL Reference Manual
Volume 1

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12.47 CREATE TABLESPACE

Name

CREATE TABLESPACE -- define a new tablespace

Synopsis

CREATE TABLESPACE tablespacename [ OWNER username ] LOCATION
 'directory'

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) 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.

Parameters

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.

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.