pg_largeobject_metadata — PostgreSQL system catalog

The PostgreSQL pg_largeobject_metadata system catalog: full column reference (names, types, descriptions), catalog relationships and version support.

The Sev-1 Admin
The Sev-1 Admin  ·  1 min read

Summary

The catalog pg_largeobject_metadata holds metadata associated with large objects. The actual large object data is stored in pg_largeobject.

(Description quoted from the official PostgreSQL documentation.)

Columns

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

  • oid oid
    Row identifier
  • lomowner oid references pg_authid.oid
    Owner of the large object
  • lomacl aclitem[]
    Access privileges; see ddl_priv for details

Related catalogs

This object references the following other system catalogs:

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

Reference: PostgreSQL documentation — pg_largeobject_metadata.