35.63. view_column_usage #
 The view view_column_usage identifies all columns that are used in the query expression of a view (the SELECT statement that defines the view). A column is only included if the table that contains the column is owned by a currently enabled role. 
Note
Columns of system tables are not included. This should be fixed sometime.
Table 35.61. view_column_usage Columns
Column Type Description  | 
|---|
 Name of the database that contains the view (always the current database)  | 
 Name of the schema that contains the view  | 
 Name of the view  | 
 Name of the database that contains the table that contains the column that is used by the view (always the current database)  | 
 Name of the schema that contains the table that contains the column that is used by the view  | 
 Name of the table that contains the column that is used by the view  | 
 Name of the column that is used by the view  |