| PostgreSQL 9.4.1 Documentation | |||
|---|---|---|---|
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34.50.table_constraints
The viewtable_constraints contains all constraints belonging to tables that the current user owns or has some privilege other thanSELECT on.
Table 34-48.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, orUNIQUE |
| is_deferrable | yes_or_no | YES if the constraint is deferrable,NO if not |
| initially_deferred | yes_or_no | YES if the constraint is deferrable and initially deferred,NO if not |