52.19. pg_description
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## 52.19. pg_description #

The catalog pg_description stores optional descriptions (comments) for each database object. Descriptions can be manipulated with the COMMENT command and viewed with psql's `\d` commands. Descriptions of many built-in system objects are provided in the initial contents of pg_description.

See also pg_shdescription, which performs a similar function for descriptions involving objects that are shared across a database cluster.

Table 52.19. pg_description 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
`objsubid` int4 For a comment 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.
`description` text Arbitrary text that serves as the description of this object

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