51.54. 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 51.54. pg_tablespace Columns
| Name | Type | References | Description |
|---|---|---|---|
oid | oid | Row identifier (hidden attribute; must be explicitly selected) | |
spcname | name | Tablespace name | |
spcowner | oid | pg_authid.oid | Owner of the tablespace, usually the user who created it |
spcacl | aclitem[] | Access privileges; see GRANT and REVOKE for details | |
spcoptions | text[] | Tablespace-level options, as “keyword=value” strings |
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https://www.postgresql.org/docs/10/catalog-pg-tablespace.html