The catalog pg_shdescription stores optional
descriptions (comments) for shared database objects. Descriptions can be
manipulated with the COMMENT command and viewed with
psql's \d commands.
See also pg_description,
which performs a similar function for descriptions involving objects
within a single database.
Unlike most system catalogs, pg_shdescription
is shared across all databases of a cluster: there is only one
copy of pg_shdescription per cluster, not
one per database.
Table 43.30. pg_shdescription Columns
| Name | Type | References | Description |
|---|---|---|---|
objoid |
oid |
any OID column | The OID of the object this description pertains to |
classoid |
oid |
|
The OID of the system catalog this object appears in |
description |
text |
Arbitrary text that serves as the description of this object |