pg_shdescription stores optional
descriptions (comments) for shared database objects. Descriptions can be
manipulated with the COMMENT command and viewed with
which performs a similar function for descriptions involving objects
within a single database.
Unlike most system catalogs,
is shared across all databases of a cluster: there is only one
pg_shdescription per cluster, not
one per database.
|any OID column||The OID of the object this description pertains to|
|The OID of the system catalog this object appears in|
|Arbitrary text that serves as the description of this object|