PostgreSQL 9.6.2 Documentation
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# 35.54. `triggered_update_columns`

For triggers in the current database that specify a column list (like `UPDATE OF column1, column2`), the view `triggered_update_columns` identifies these columns. Triggers that do not specify a column list are not included in this view. Only those columns are shown that the current user owns or has some privilege other than `SELECT` on.

Table 35-52. `triggered_update_columns` Columns

Name | Data Type | Description
--- | --- | ---
`trigger_catalog` | `sql_identifier` | Name of the database that contains the trigger (always the current database)
`trigger_schema` | `sql_identifier` | Name of the schema that contains the trigger
`trigger_name` | `sql_identifier` | Name of the trigger
`event_object_catalog` | `sql_identifier` | Name of the database that contains the table that the trigger is defined on (always the current database)
`event_object_schema` | `sql_identifier` | Name of the schema that contains the table that the trigger is defined on
`event_object_table` | `sql_identifier` | Name of the table that the trigger is defined on
`event_object_column` | `sql_identifier` | Name of the column that the trigger is defined on

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