---
title: "pg_tablespace"
id: catalog-pg-tablespace
pg_version: "20devel"
---

<a id="catalog-pg-tablespace"></a>

## 52.61. 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. 

**pg_tablespace Columns**

| Column Type | Description | 
| --- | --- |
| `oid` `oid` | Row identifier |
| `spcname` `name` | Tablespace name |
| `spcowner` `oid` (references [pg_authid](catalog-pg-authid.md).`oid`) | Owner of the tablespace, usually the user who created it |
| `spcacl` `aclitem[]` | Access privileges; see [Section 5.9](ddl-priv.md) for details |
| `spcoptions` `text[]` | Tablespace-level options, as "keyword=value" strings |