PostgreSQL

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

Name Type References Description

Name	Type	References	Description
`objoid`	`oid`	any OID column	The OID of the object this description pertains to
`classoid`	`oid`	`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

objoid

oid

any OID column

The OID of the object this description pertains to

classoid

oid

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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52.19. pg_description

52.19. `pg_description`