Redrock Postgres Search Chinese
Version: 9.3 / 9.4 / 9.5 / 9.6 / 10 / 11 / 12 / 13 / 14 / 15 / 16
37.19. constraint_table_usage
Prev UpChapter 37. The Information SchemaHome Next

37.19. 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.

Table 37.17. constraint_table_usage Columns

Column 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


Prev Up Next
37.18. constraint_column_usage Home 37.20. data_type_privileges