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from collections.abc import Sequence
from typing import Any
from django.db.backends.base.base import BaseDatabaseWrapper
from django.db.models.base import Model
from django.db.utils import DatabaseError, DataError
from django.utils.functional import cached_property
class BaseDatabaseFeatures:
minimum_database_version: tuple[int, ...] | None
gis_enabled: bool
allows_group_by_lob: bool
allows_group_by_selected_pks: bool
allows_group_by_select_index: bool
empty_fetchmany_value: Sequence[Any]
update_can_self_select: bool
delete_can_self_reference_subquery: bool
interprets_empty_strings_as_nulls: bool
supports_nullable_unique_constraints: bool
supports_partially_nullable_unique_constraints: bool
supports_deferrable_unique_constraints: bool
can_use_chunked_reads: bool
can_return_columns_from_insert: bool
can_return_rows_from_bulk_insert: bool
has_bulk_insert: bool
uses_savepoints: bool
can_release_savepoints: bool
related_fields_match_type: bool
allow_sliced_subqueries_with_in: bool
has_select_for_update: bool
has_select_for_update_nowait: bool
has_select_for_update_skip_locked: bool
has_select_for_update_of: bool
has_select_for_no_key_update: bool
select_for_update_of_column: bool
test_db_allows_multiple_connections: bool
supports_unspecified_pk: bool
supports_forward_references: bool
truncates_names: bool
has_real_datatype: bool
supports_subqueries_in_group_by: bool
ignores_unnecessary_order_by_in_subqueries: bool
has_native_uuid_field: bool
has_native_duration_field: bool
supports_temporal_subtraction: bool
supports_regex_backreferencing: bool
supports_date_lookup_using_string: bool
supports_timezones: bool
has_zoneinfo_database: bool
requires_explicit_null_ordering_when_grouping: bool
nulls_order_largest: bool
supports_order_by_nulls_modifier: bool
order_by_nulls_first: bool
max_query_params: int | None
allows_auto_pk_0: bool
can_defer_constraint_checks: bool
supports_tablespaces: bool
supports_sequence_reset: bool
can_introspect_default: bool
can_introspect_foreign_keys: bool
introspected_field_types: dict[str, str]
supports_index_column_ordering: bool
can_introspect_materialized_views: bool
can_distinct_on_fields: bool
atomic_transactions: bool
can_rollback_ddl: bool
schema_editor_uses_clientside_param_binding: bool
supports_combined_alters: bool
supports_foreign_keys: bool
can_create_inline_fk: bool
can_rename_index: bool
indexes_foreign_keys: bool
supports_column_check_constraints: bool
supports_table_check_constraints: bool
can_introspect_check_constraints: bool
supports_paramstyle_pyformat: bool
requires_literal_defaults: bool
supports_expression_defaults: bool
supports_default_keyword_in_insert: bool
supports_default_keyword_in_bulk_insert: bool
connection_persists_old_columns: bool
closed_cursor_error_class: type[DatabaseError]
has_case_insensitive_like: bool
bare_select_suffix: str
implied_column_null: bool
supports_select_for_update_with_limit: bool
greatest_least_ignores_nulls: bool
can_clone_databases: bool
ignores_table_name_case: bool
for_update_after_from: bool
supports_select_union: bool
supports_select_intersection: bool
supports_select_difference: bool
supports_slicing_ordering_in_compound: bool
supports_parentheses_in_compound: bool
supports_nulls_distinct_unique_constraints: bool
requires_compound_order_by_subquery: bool
supports_aggregate_filter_clause: bool
supports_index_on_text_field: bool
supports_over_clause: bool
supports_frame_range_fixed_distance: bool
supports_frame_exclusion: bool
only_supports_unbounded_with_preceding_and_following: bool
supports_cast_with_precision: bool
time_cast_precision: int
create_test_procedure_without_params_sql: str | None
create_test_procedure_with_int_param_sql: str | None
create_test_table_with_composite_primary_key: str | None
supports_callproc_kwargs: bool
supported_explain_formats: set[str]
supports_default_in_lead_lag: bool
supports_ignore_conflicts: bool
supports_update_conflicts: bool
supports_update_conflicts_with_target: bool
requires_casted_case_in_updates: bool
supports_partial_indexes: bool
supports_functions_in_partial_indexes: bool
supports_covering_indexes: bool
supports_expression_indexes: bool
collate_as_index_expression: bool
allows_multiple_constraints_on_same_fields: bool
supports_comparing_boolean_expr: bool
supports_json_field: bool
can_introspect_json_field: bool
supports_primitives_in_json_field: bool
has_native_json_field: bool
has_json_operators: bool
supports_json_field_contains: bool
json_key_contains_list_matching_requires_list: bool
has_json_object_function: bool
supports_collation_on_charfield: bool
supports_collation_on_textfield: bool
supports_non_deterministic_collations: bool
supports_comments: bool
supports_comments_inline: bool
supports_stored_generated_columns: bool
supports_virtual_generated_columns: bool
supports_logical_xor: bool
prohibits_null_characters_in_text_exception: tuple[ValueError | DataError] | None
supports_unlimited_charfield: bool
test_collations: dict[str, str | None]
test_now_utc_template: str | None
insert_test_table_with_defaults: str | None
django_test_expected_failures: set[str]
django_test_skips: dict[str, set[str]]
connection: BaseDatabaseWrapper
def __init__(self, connection: BaseDatabaseWrapper) -> None: ...
@cached_property
def supports_explaining_query_execution(self) -> bool: ...
@cached_property
def supports_transactions(self) -> bool: ...
@cached_property
def supports_boolean_expr_in_select_clause(self) -> bool: ...
def allows_group_by_selected_pks_on_model(self, model: type[Model]) -> bool: ...
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