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.
Table 42-17. pg_description Columns
| 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. |
