35.15. column_privileges #
 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. 
 If a privilege has been granted on an entire table, it will show up in this view as a grant for each column, but only for the privilege types where column granularity is possible: SELECT, INSERT, UPDATE, REFERENCES. 
Table 35.13. column_privileges Columns
Column Type Description  | 
|---|
 Name of the role that granted the privilege  | 
 Name of the role that the privilege was granted to  | 
 Name of the database that contains the table that contains the column (always the current database)  | 
 Name of the schema that contains the table that contains the column  | 
 Name of the table that contains the column  | 
 Name of the column  | 
  Type of the privilege:   | 
 
  |