| PostgreSQL 7.4.16 Documentation | ||||
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The catalog pg_description can store an optional description or comment 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 43-14. 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. |
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