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36.51. table_constraints
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36.51. 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 36.49. 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 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)

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