39.63. `view_column_usage`
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## 39.63. `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 39.61. `view_column_usage` Columns

Column Type Description
`view_catalog` `sql_identifier` Name of the database that contains the view (always the current database)
`view_schema` `sql_identifier` Name of the schema that contains the view
`view_name` `sql_identifier` Name of the view
`table_catalog` `sql_identifier` Name of the database that contains the table that contains the column that is used by the view (always the current database)
`table_schema` `sql_identifier` Name of the schema that contains the table that contains the column that is used by the view
`table_name` `sql_identifier` Name of the table that contains the column that is used by the view
`column_name` `sql_identifier` Name of the column that is used by the view

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