| PostgreSQL 8.2.6 Documentation | ||||
|---|---|---|---|---|
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The view column_privileges identifies all privileges granted on columns to a currently enabled role or by a currently enabled role. There is one row for each combination of column, grantor, and grantee.
In PostgreSQL , you can only grant privileges on entire tables, not individual columns. Therefore, this view contains the same information as table_privileges , just represented through one row for each column in each appropriate table, but it only covers privilege types where column granularity is possible: SELECT , INSERT , UPDATE , REFERENCES . If you want to make your applications fit for possible future developments, it is generally the right choice to use this view instead of table_privileges if one of those privilege types is concerned.
Table 32-8. column_privileges Columns
| Name | Data Type | Description |
|---|---|---|
| grantor | sql_identifier | Name of the role that granted the privilege |
| grantee | sql_identifier | Name of the role that the privilege was granted to |
| table_catalog | sql_identifier | Name of the database that contains the table that contains the column (always the current database) |
| table_schema | sql_identifier | Name of the schema that contains the table that contains the column |
| table_name | sql_identifier | Name of the table that contains the column |
| column_name | sql_identifier | Name of the column |
| privilege_type | character_data | Type of the privilege: SELECT , INSERT , UPDATE , or REFERENCES |
| is_grantable | character_data | YES if the privilege is grantable, NO if not |