django.db.backends.mysql.features.DatabaseFeatures

class documentation

class DatabaseFeatures(BaseDatabaseFeatures):

Known subclasses: django.contrib.gis.db.backends.mysql.features.DatabaseFeatures

Undocumented

Class Variable	`allow_sliced_subqueries_with_in`	Undocumented
Class Variable	`allows_group_by_pk`	Undocumented
Class Variable	`atomic_transactions`	Undocumented
Class Variable	`can_clone_databases`	Undocumented
Class Variable	`can_release_savepoints`	Undocumented
Class Variable	`can_return_rows_from_bulk_insert`	Undocumented
Class Variable	`collate_as_index_expression`	Undocumented
Class Variable	`create_test_procedure_with_int_param_sql`	Undocumented
Class Variable	`create_test_procedure_without_params_sql`	Undocumented
Class Variable	`empty_fetchmany_value`	Undocumented
Class Variable	`has_case_insensitive_like`	Undocumented
Class Variable	`has_select_for_update`	Undocumented
Class Variable	`order_by_nulls_first`	Undocumented
Class Variable	`related_fields_match_type`	Undocumented
Class Variable	`requires_explicit_null_ordering_when_grouping`	Undocumented
Class Variable	`supports_date_lookup_using_string`	Undocumented
Class Variable	`supports_forward_references`	Undocumented
Class Variable	`supports_frame_range_fixed_distance`	Undocumented
Class Variable	`supports_index_on_text_field`	Undocumented
Class Variable	`supports_order_by_nulls_modifier`	Undocumented
Class Variable	`supports_partial_indexes`	Undocumented
Class Variable	`supports_regex_backreferencing`	Undocumented
Class Variable	`supports_select_difference`	Undocumented
Class Variable	`supports_select_intersection`	Undocumented
Class Variable	`supports_slicing_ordering_in_compound`	Undocumented
Class Variable	`supports_table_check_constraints`	Undocumented
Class Variable	`supports_temporal_subtraction`	Undocumented
Class Variable	`supports_timezones`	Undocumented
Class Variable	`test_now_utc_template`	Undocumented
Property	`_mysql_storage_engine`	Internal method used in Django tests. Don't rely on this from your code
Property	`allows_auto_pk_0`	Autoincrement primary key can be set to 0 if it doesn't generate new autoincrement values.
Property	`can_introspect_check_constraints`	Undocumented
Property	`can_introspect_foreign_keys`	Confirm support for introspected foreign keys
Property	`can_introspect_json_field`	Undocumented
Property	`can_return_columns_from_insert`	Undocumented
Property	`django_test_skips`	Undocumented
Property	`has_select_for_update_nowait`	Undocumented
Property	`has_select_for_update_of`	Undocumented
Property	`has_select_for_update_skip_locked`	Undocumented
Property	`has_zoneinfo_database`	Undocumented
Property	`ignores_table_name_case`	Undocumented
Property	`introspected_field_types`	Undocumented
Property	`is_sql_auto_is_null_enabled`	Undocumented
Property	`supported_explain_formats`	Undocumented
Property	`supports_column_check_constraints`	Undocumented
Property	`supports_default_in_lead_lag`	Undocumented
Property	`supports_explain_analyze`	Undocumented
Property	`supports_expression_indexes`	Undocumented
Property	`supports_index_column_ordering`	Undocumented
Property	`supports_json_field`	Undocumented
Property	`supports_over_clause`	Undocumented
Property	`supports_transactions`	All storage engines except MyISAM support transactions.
Property	`test_collations`	Undocumented
Property	`update_can_self_select`	Undocumented

Inherited from BaseDatabaseFeatures:

Method	`__init__`	Undocumented
Method	`allows_group_by_selected_pks_on_model`	Undocumented
Class Variable	`allows_group_by_lob`	Undocumented
Class Variable	`allows_group_by_selected_pks`	Undocumented
Class Variable	`allows_multiple_constraints_on_same_fields`	Undocumented
Class Variable	`bare_select_suffix`	Undocumented
Class Variable	`can_create_inline_fk`	Undocumented
Class Variable	`can_defer_constraint_checks`	Undocumented
Class Variable	`can_distinct_on_fields`	Undocumented
Class Variable	`can_introspect_default`	Undocumented
Class Variable	`can_introspect_materialized_views`	Undocumented
Class Variable	`can_rollback_ddl`	Undocumented
Class Variable	`can_use_chunked_reads`	Undocumented
Class Variable	`connection_persists_old_columns`	Undocumented
Class Variable	`django_test_expected_failures`	Undocumented
Class Variable	`for_update_after_from`	Undocumented
Class Variable	`gis_enabled`	Undocumented
Class Variable	`greatest_least_ignores_nulls`	Undocumented
Class Variable	`has_bulk_insert`	Undocumented
Class Variable	`has_json_object_function`	Undocumented
Class Variable	`has_json_operators`	Undocumented
Class Variable	`has_native_duration_field`	Undocumented
Class Variable	`has_native_json_field`	Undocumented
Class Variable	`has_native_uuid_field`	Undocumented
Class Variable	`has_real_datatype`	Undocumented
Class Variable	`has_select_for_no_key_update`	Undocumented
Class Variable	`ignores_unnecessary_order_by_in_subqueries`	Undocumented
Class Variable	`implied_column_null`	Undocumented
Class Variable	`indexes_foreign_keys`	Undocumented
Class Variable	`interprets_empty_strings_as_nulls`	Undocumented
Class Variable	`json_key_contains_list_matching_requires_list`	Undocumented
Class Variable	`max_query_params`	Undocumented
Class Variable	`nulls_order_largest`	Undocumented
Class Variable	`only_supports_unbounded_with_preceding_and_following`	Undocumented
Class Variable	`requires_casted_case_in_updates`	Undocumented
Class Variable	`requires_literal_defaults`	Undocumented
Class Variable	`select_for_update_of_column`	Undocumented
Class Variable	`supports_aggregate_filter_clause`	Undocumented
Class Variable	`supports_atomic_references_rename`	Undocumented
Class Variable	`supports_boolean_expr_in_select_clause`	Undocumented
Class Variable	`supports_callproc_kwargs`	Undocumented
Class Variable	`supports_cast_with_precision`	Undocumented
Class Variable	`supports_collation_on_charfield`	Undocumented
Class Variable	`supports_collation_on_textfield`	Undocumented
Class Variable	`supports_combined_alters`	Undocumented
Class Variable	`supports_covering_indexes`	Undocumented
Class Variable	`supports_deferrable_unique_constraints`	Undocumented
Class Variable	`supports_foreign_keys`	Undocumented
Class Variable	`supports_functions_in_partial_indexes`	Undocumented
Class Variable	`supports_ignore_conflicts`	Undocumented
Class Variable	`supports_json_field_contains`	Undocumented
Class Variable	`supports_mixed_date_datetime_comparisons`	Undocumented
Class Variable	`supports_non_deterministic_collations`	Undocumented
Class Variable	`supports_nullable_unique_constraints`	Undocumented
Class Variable	`supports_paramstyle_pyformat`	Undocumented
Class Variable	`supports_parentheses_in_compound`	Undocumented
Class Variable	`supports_partially_nullable_unique_constraints`	Undocumented
Class Variable	`supports_primitives_in_json_field`	Undocumented
Class Variable	`supports_select_for_update_with_limit`	Undocumented
Class Variable	`supports_select_union`	Undocumented
Class Variable	`supports_sequence_reset`	Undocumented
Class Variable	`supports_subqueries_in_group_by`	Undocumented
Class Variable	`supports_tablespaces`	Undocumented
Class Variable	`supports_unspecified_pk`	Undocumented
Class Variable	`test_db_allows_multiple_connections`	Undocumented
Class Variable	`time_cast_precision`	Undocumented
Class Variable	`truncates_names`	Undocumented
Class Variable	`uses_savepoints`	Undocumented
Class Variable	`validates_explain_options`	Undocumented
Instance Variable	`connection`	Undocumented
Property	`supports_explaining_query_execution`	Does this backend support explaining query execution?

allow_sliced_subqueries_with_in: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.allow_sliced_subqueries_with_in

Undocumented

allows_group_by_pk: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.allows_group_by_pk

Undocumented

atomic_transactions: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.atomic_transactions

Undocumented

can_clone_databases: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.can_clone_databases

Undocumented

can_release_savepoints: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.can_release_savepoints

Undocumented

can_return_rows_from_bulk_insert =

overrides django.db.backends.base.features.BaseDatabaseFeatures.can_return_rows_from_bulk_insert

Undocumented

collate_as_index_expression: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.collate_as_index_expression

Undocumented

create_test_procedure_with_int_param_sql: str =

overrides django.db.backends.base.features.BaseDatabaseFeatures.create_test_procedure_with_int_param_sql

Undocumented

create_test_procedure_without_params_sql: str =

overrides django.db.backends.base.features.BaseDatabaseFeatures.create_test_procedure_without_params_sql

Undocumented

empty_fetchmany_value: tuple =

overrides django.db.backends.base.features.BaseDatabaseFeatures.empty_fetchmany_value

Undocumented

has_case_insensitive_like: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.has_case_insensitive_like

Undocumented

has_select_for_update: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update

Undocumented

order_by_nulls_first: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.order_by_nulls_first

Undocumented

related_fields_match_type: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.related_fields_match_type

Undocumented

requires_explicit_null_ordering_when_grouping: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.requires_explicit_null_ordering_when_grouping

Undocumented

supports_date_lookup_using_string: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_date_lookup_using_string

Undocumented

supports_forward_references: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_forward_references

Undocumented

supports_frame_range_fixed_distance =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_frame_range_fixed_distance

Undocumented

supports_index_on_text_field: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_index_on_text_field

Undocumented

supports_order_by_nulls_modifier: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_order_by_nulls_modifier

Undocumented

supports_partial_indexes: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_partial_indexes

Undocumented

supports_regex_backreferencing: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_regex_backreferencing

Undocumented

supports_select_difference: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_select_difference

Undocumented

supports_select_intersection: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_select_intersection

Undocumented

supports_slicing_ordering_in_compound: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_slicing_ordering_in_compound

Undocumented

supports_table_check_constraints =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_table_check_constraints

Undocumented

supports_temporal_subtraction: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_temporal_subtraction

Undocumented

supports_timezones: bool =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_timezones

Undocumented

test_now_utc_template: str =

overrides django.db.backends.base.features.BaseDatabaseFeatures.test_now_utc_template

Undocumented

@cached_property
_mysql_storage_engine =

Internal method used in Django tests. Don't rely on this from your code

@cached_property
allows_auto_pk_0 =

overrides django.db.backends.base.features.BaseDatabaseFeatures.allows_auto_pk_0

Autoincrement primary key can be set to 0 if it doesn't generate new autoincrement values.

@cached_property
can_introspect_check_constraints =

overrides django.db.backends.base.features.BaseDatabaseFeatures.can_introspect_check_constraints

Undocumented

@cached_property
can_introspect_foreign_keys =

overrides django.db.backends.base.features.BaseDatabaseFeatures.can_introspect_foreign_keys

Confirm support for introspected foreign keys

@cached_property
can_introspect_json_field =

overrides django.db.backends.base.features.BaseDatabaseFeatures.can_introspect_json_field

Undocumented

@cached_property
can_return_columns_from_insert =

overrides django.db.backends.base.features.BaseDatabaseFeatures.can_return_columns_from_insert

Undocumented

@cached_property
django_test_skips =

overrides django.db.backends.base.features.BaseDatabaseFeatures.django_test_skips

overridden in django.contrib.gis.db.backends.mysql.features.DatabaseFeatures

Undocumented

@cached_property
has_select_for_update_nowait =

overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update_nowait

Undocumented

@cached_property
has_select_for_update_of =

overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update_of

Undocumented

@cached_property
has_select_for_update_skip_locked =

overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update_skip_locked

Undocumented

@cached_property
has_zoneinfo_database =

overrides django.db.backends.base.features.BaseDatabaseFeatures.has_zoneinfo_database

Undocumented

@cached_property
ignores_table_name_case =

overrides django.db.backends.base.features.BaseDatabaseFeatures.ignores_table_name_case

Undocumented

@cached_property
introspected_field_types =

overrides django.db.backends.base.features.BaseDatabaseFeatures.introspected_field_types

Undocumented

@cached_property
is_sql_auto_is_null_enabled =

Undocumented

@cached_property
supported_explain_formats =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supported_explain_formats

Undocumented

@cached_property
supports_column_check_constraints =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_column_check_constraints

Undocumented

@cached_property
supports_default_in_lead_lag =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_default_in_lead_lag

Undocumented

@cached_property
supports_explain_analyze =

Undocumented

@cached_property
supports_expression_indexes =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_expression_indexes

Undocumented

@cached_property
supports_index_column_ordering =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_index_column_ordering

Undocumented

@cached_property
supports_json_field =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_json_field

Undocumented

@cached_property
supports_over_clause =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_over_clause

Undocumented

@cached_property
supports_transactions =

overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_transactions

All storage engines except MyISAM support transactions.

@cached_property
test_collations =

overrides django.db.backends.base.features.BaseDatabaseFeatures.test_collations

Undocumented

@cached_property
update_can_self_select =

overrides django.db.backends.base.features.BaseDatabaseFeatures.update_can_self_select

Undocumented