pg_tablespace — PostgreSQL system catalog

Summary

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

(Description quoted from the official PostgreSQL documentation.)

Columns

The pg_tablespace system catalog exposes the following columns (names, types and descriptions are taken verbatim from the PostgreSQL documentation):

• oid oid
  Row identifier
• spcname name
  Tablespace name
• spcowner oid references pg_authid.oid
  Owner of the tablespace, usually the user who created it
• spcacl aclitem[]
  Access privileges; see ddl_priv for details
• spcoptions text[]
  Tablespace-level options, as “keyword=value” strings

Related catalogs

This object references the following other system catalogs:

• spcowner → pg_authid

Version applicability

Present in PostgreSQL 17, 18, 19 (verified against each release’s documentation). This is a long-standing system object that also exists in earlier PostgreSQL releases.

Related & references

• PostgreSQL system catalog & view index
• Built-in function reference

Reference: PostgreSQL documentation — pg_tablespace.