django.db.backends.ddl_references

module documentation
(source)

Helpers to manipulate deferred DDL statements that might need to be adjusted or discarded within when executing a migration.

Class Columns Hold a reference to one or many columns.
Class Expressions Undocumented
Class ForeignKeyName Hold a reference to a foreign key name.
Class IndexColumns Undocumented
Class IndexName Hold a reference to an index name.
Class Reference Base class that defines the reference interface.
Class Statement Statement template and formatting parameters container.
Class Table Hold a reference to a table.
Class TableColumns Base class for references to multiple columns of a table.