51.47. pg_shdescription

51.47. `pg_shdescription`
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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 51.47. 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

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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