# 37.52. table_constraints
The view table_constraints
contains all constraints belonging to tables that the current user owns or has some privilege other than SELECT
on.
Table 37.50. table_constraints
Columns
Column 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 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 |
enforced yes_or_no Applies to a feature not available in PostgreSQL (currently always YES ) |