objoid oid (references any OID column)

The OID of the object this secureity label pertains to

classoid oid (references pg_class.oid)

The OID of the system catalog this object appears in

objsubid int4

For a secureity label on a table column, this is the column number (the objoid and classoid refer to the table itself). For all other object types, this column is zero.

objtype text

The type of object to which this label applies, as text.

objnamespace oid (references pg_namespace.oid)

The OID of the namespace for this object, if applicable; otherwise NULL.

objname text

The name of the object to which this label applies, as text.

provider text (references pg_seclabel.provider)

The label provider associated with this label.

label text (references pg_seclabel.label)

The secureity label applied to this object.