Support for cx_Oracle values of unknown, true, and false instead Of a bytestring, and _base64_decode() may no Support for bytestring paths in the template filesystem loader is removed.ĭ_base64_encode() now returns a string instead
Is now the real ellipsis character ( …) instead of 3 dots. Truncatewords, and truncatewords_html template filters The default truncation character used by the urlizetrunc, The return value of () is no longer marked as Have existing invalid data and run a migration that recreates a table, you’llįor consistency with WSGI servers, the test client now sets theĬontent-Length header to a string rather than an integer. Include a check constraint to prevent negative values in the database. On SQLite, PositiveIntegerField and PositiveSmallIntegerField now To improve readability, the UUIDField form field now displays values withĭashes, e.g. The third argument of DatabaseWrapper._init_(),._create_check_sql() and _delete_check_sql()._delete_fk_sql() (to pair with _create_fk_sql())._delete_unique_sql (to pair with _create_unique_sql())._delete_index_sql() (to pair with _create_index_sql())._create_primary_key_sql() and _delete_primary_key_sql().SchemaEditor and these SchemaEditor methods are added: SQL generation for indexes is moved from Index to.Need to instead implement DatabaseIntrospection.identifier_converter().ĭatabaseIntrospection.get_constraints() returns must be normalized by DatabaseIntrospection.table_name_converter() andĬolumn_name_converter() are removed.Set DatabaseFeatures.supports_partial_indexes to False. Third party database backends must implement support for partial indexes or.Third party database backends must implement introspection forĭurationField or set DatabaseFeatures.can_introspect_duration_field.Third party database backends must implement support for ignoringĬonstraints or uniqueness errors while inserting or setĭatabaseFeatures.supports_ignore_conflicts to False.Third-party database backends must implement support for table checkĬonstraints or set DatabaseFeatures.supports_table_check_constraints to.This section describes changes that may be needed in third-party database Through_defaults argument is used to specify values for new intermediate Many-to-many relationships with intermediate models. Get_or_create(), and update_or_create() methods are now allowed on Specified on initialization to ensure that the aggregate function is onlyĬalled for each distinct value of expressions. Adding allow_distinct = True as a class attribute onĪggregate subclasses allows a distinct keyword argument to be The handling of DISTINCT aggregation is added to theĪggregate class.Added SQLite support for the StdDev and.This improves the performance of autocommit by reducing Performed, such as Model.save(), QuerySet.update(), and Django no longer always starts a transaction when a single query is being.Specific fields on multiple model instances. The new QuerySet.bulk_update() method allows efficiently updating.Lookup allows querying by an ISO-8601 week-numbering year. ISO-8601 week-numbering years from DateField and The new ExtractIsoYear function extracts.QuerySet.bulk_create() to True tells the database to ignoreįailure to insert rows that fail uniqueness constraints or other checks. Setting the new ignore_conflicts parameter of.Added support for partial indexes ( ndition).Added support for PostgreSQL operator classes ( Index.opclasses).