| 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>>> |
4.13 constraint_column_usage
The view constraint_column_usage identifies all
columns in the current database that are used by some constraint.
Only those columns are shown that are contained in a table owned by
a currently enabled role. For a check constraint, this view
identifies the columns that are used in the check expression. For
a foreign key constraint, this view identifies the columns that the
foreign key references. For a unique or primary key constraint,
this view identifies the constrained columns.
4-11:
constraint_column_usage Columns
| Name | Data Type | Description
|
table_catalog | sql_identifier | Name of the database that contains the table that contains the
column that is used by some constraint (always the current
database)
|
table_schema | sql_identifier | Name of the schema that contains the table that contains the
column that is used by some constraint
|
table_name | sql_identifier | Name of the table that contains the column that is used by some
constraint
|
column_name | sql_identifier | Name of the column 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 |