| The PostgreSQL 9.0 Reference Manual - Volume 2 - Programming Guide
by The PostgreSQL Global Development Group Paperback (6"x9"), 478 pages ISBN 9781906966065 RRP £14.95 ($19.95) Sales of this book support the PostgreSQL project! Get a printed copy>>> |
4.14 constraint_table_usage
The view constraint_table_usage identifies all
tables in the current database that are used by some constraint and
are owned by a currently enabled role. (This is different from the
view table_constraints, which identifies all
table constraints along with the table they are defined on.) For a
foreign key constraint, this view identifies the table that the
foreign key references. For a unique or primary key constraint,
this view simply identifies the table the constraint belongs to.
Check constraints and not-null constraints are not included in this
view.
4-12:
constraint_table_usage Columns
| Name | Data Type | Description
|
table_catalog | sql_identifier | Name of the database that contains the table that is used by
some constraint (always the current database)
|
table_schema | sql_identifier | Name of the schema that contains the table that is used by some
constraint
|
table_name | sql_identifier | Name of the table that is used by some constraint
|
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 |
| ISBN 9781906966065 | The PostgreSQL 9.0 Reference Manual - Volume 2 - Programming Guide | See the print edition |