52.49. pg_shdescription
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## 52.49. pg_shdescription #

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 52.49. pg_shdescription Columns

Column Type Description
`objoid` oid (references any OID column) The OID of the object this description pertains to
`classoid` oid (references pg_class.`oid`) The OID of the system catalog this object appears in
`description` text Arbitrary text that serves as the description of this object

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