Module foreign_keys 

Foreign-key comparison types, null matching, and normalized key values.

Structs

ForeignKeyComparison

ForeignKeyLookup

Functions

foreign_key_comparison_types

foreign_key_lookup_values

foreign_key_parent_values

foreign_key_relation_name

foreign_key_values

The normalized values of the foreign key that the row of table holds, or None when NULLs exempt the row: any NULL under MATCH SIMPLE, all of them under MATCH FULL, which rejects a key that mixes NULLs with values as RI_FKey_check does.

normalize_foreign_key_values