| PostgreSQL 8.2.6 Documentation | ||||
|---|---|---|---|---|
| Prev | Fast Backward | Chapter 32. The Information Schema | Fast Forward | Next |
The view table_constraints contains all constraints belonging to tables that the current user owns or has some privilege on.
Table 32-37. table_constraints Columns
| Name | Data Type | Description |
|---|---|---|
| constraint_catalog | sql_identifier | Name of the database that contains the constraint (always the current database) |
| constraint_schema | sql_identifier | Name of the schema that contains the constraint |
| constraint_name | sql_identifier | Name of the constraint |
| table_catalog | sql_identifier | Name of the database that contains the table (always the current database) |
| table_schema | sql_identifier | Name of the schema that contains the table |
| table_name | sql_identifier | Name of the table |
| constraint_type | character_data | Type of the constraint: CHECK , FOREIGN KEY , PRIMARY KEY , or UNIQUE |
| is_deferrable | character_data | YES if the constraint is deferrable, NO if not |
| initially_deferred | character_data | YES if the constraint is deferrable and initially deferred, NO if not |