pg_tablespace

The catalog pg_tablespace stores information about the available tablespaces. Tables can be placed in particular tablespaces to aid administration of disk layout.

Unlike most system catalogs, pg_tablespace is shared across all databases of a cluster: there is only one copy of pg_tablespace per cluster, not one per database.

Table 1. pg_catalog.pg_tablespace

column	type	references	description
oid	oid		Row identifier
spcname	name		Tablespace name
spcowner	oid	pg_authid.oid	Owner of the tablespace, usually the user who created it
spcacl	aclitem[]		Access privileges
spcoptions	text[]		Tablespace-level options, as “keyword=value” strings
spclocation	text		Tablespace URL