django.db.backends.postgresql.features.DatabaseFeatures

class documentation

class DatabaseFeatures(BaseDatabaseFeatures):

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

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Undocumented

Class Variable allows​_group​_by​_selected​_pks Undocumented
Class Variable can​_clone​_databases Undocumented
Class Variable can​_defer​_constraint​_checks Undocumented
Class Variable can​_distinct​_on​_fields Undocumented
Class Variable can​_introspect​_materialized​_views Undocumented
Class Variable can​_release​_savepoints Undocumented
Class Variable can​_return​_columns​_from​_insert Undocumented
Class Variable can​_return​_rows​_from​_bulk​_insert Undocumented
Class Variable can​_rollback​_ddl Undocumented
Class Variable create​_test​_procedure​_with​_int​_param​_sql Undocumented
Class Variable create​_test​_procedure​_without​_params​_sql Undocumented
Class Variable django​_test​_skips Undocumented
Class Variable greatest​_least​_ignores​_nulls Undocumented
Class Variable has​_case​_insensitive​_like 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 has​_select​_for​_update Undocumented
Class Variable has​_select​_for​_update​_nowait Undocumented
Class Variable has​_select​_for​_update​_of Undocumented
Class Variable has​_select​_for​_update​_skip​_locked Undocumented
Class Variable has​_websearch​_to​_tsquery Undocumented
Class Variable json​_key​_contains​_list​_matching​_requires​_list 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 supported​_explain​_formats Undocumented
Class Variable supports​_aggregate​_filter​_clause Undocumented
Class Variable supports​_combined​_alters Undocumented
Class Variable supports​_covering​_gist​_indexes Undocumented
Class Variable supports​_covering​_indexes Undocumented
Class Variable supports​_deferrable​_unique​_constraints Undocumented
Class Variable supports​_non​_deterministic​_collations Undocumented
Class Variable supports​_over​_clause Undocumented
Class Variable supports​_slicing​_ordering​_in​_compound Undocumented
Class Variable supports​_tablespaces Undocumented
Class Variable supports​_temporal​_subtraction Undocumented
Class Variable supports​_transactions Confirm support for transactions.
Class Variable test​_collations Undocumented
Class Variable test​_now​_utc​_template Undocumented
Class Variable validates​_explain​_options Undocumented
Property introspected​_field​_types Undocumented
Property is​_postgresql​_11 Undocumented
Property is​_postgresql​_12 Undocumented
Property is​_postgresql​_13 Undocumented

Inherited from BaseDatabaseFeatures:

Method __init__ Undocumented
Method allows​_group​_by​_selected​_pks​_on​_model Undocumented
Class Variable allow​_sliced​_subqueries​_with​_in Undocumented
Class Variable allows​_auto​_pk​_0 Undocumented
Class Variable allows​_group​_by​_lob Undocumented
Class Variable allows​_group​_by​_pk Undocumented
Class Variable allows​_multiple​_constraints​_on​_same​_fields Undocumented
Class Variable atomic​_transactions Undocumented
Class Variable bare​_select​_suffix Undocumented
Class Variable can​_create​_inline​_fk Undocumented
Class Variable can​_introspect​_check​_constraints Undocumented
Class Variable can​_introspect​_default Undocumented
Class Variable can​_introspect​_foreign​_keys Undocumented
Class Variable can​_introspect​_json​_field Undocumented
Class Variable can​_use​_chunked​_reads Undocumented
Class Variable collate​_as​_index​_expression Undocumented
Class Variable connection​_persists​_old​_columns Undocumented
Class Variable django​_test​_expected​_failures Undocumented
Class Variable empty​_fetchmany​_value Undocumented
Class Variable for​_update​_after​_from Undocumented
Class Variable gis​_enabled Undocumented
Class Variable has​_bulk​_insert Undocumented
Class Variable has​_json​_object​_function Undocumented
Class Variable has​_zoneinfo​_database Undocumented
Class Variable ignores​_table​_name​_case 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 max​_query​_params 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 requires​_literal​_defaults Undocumented
Class Variable select​_for​_update​_of​_column 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​_column​_check​_constraints Undocumented
Class Variable supports​_date​_lookup​_using​_string Undocumented
Class Variable supports​_default​_in​_lead​_lag Undocumented
Class Variable supports​_expression​_indexes Undocumented
Class Variable supports​_foreign​_keys Undocumented
Class Variable supports​_forward​_references Undocumented
Class Variable supports​_frame​_range​_fixed​_distance Undocumented
Class Variable supports​_functions​_in​_partial​_indexes Undocumented
Class Variable supports​_ignore​_conflicts Undocumented
Class Variable supports​_index​_column​_ordering Undocumented
Class Variable supports​_index​_on​_text​_field Undocumented
Class Variable supports​_json​_field Undocumented
Class Variable supports​_json​_field​_contains Undocumented
Class Variable supports​_mixed​_date​_datetime​_comparisons Undocumented
Class Variable supports​_nullable​_unique​_constraints Undocumented
Class Variable supports​_order​_by​_nulls​_modifier Undocumented
Class Variable supports​_paramstyle​_pyformat Undocumented
Class Variable supports​_parentheses​_in​_compound Undocumented
Class Variable supports​_partial​_indexes Undocumented
Class Variable supports​_partially​_nullable​_unique​_constraints Undocumented
Class Variable supports​_primitives​_in​_json​_field Undocumented
Class Variable supports​_regex​_backreferencing Undocumented
Class Variable supports​_select​_difference Undocumented
Class Variable supports​_select​_for​_update​_with​_limit Undocumented
Class Variable supports​_select​_intersection Undocumented
Class Variable supports​_select​_union Undocumented
Class Variable supports​_sequence​_reset Undocumented
Class Variable supports​_subqueries​_in​_group​_by Undocumented
Class Variable supports​_table​_check​_constraints Undocumented
Class Variable supports​_timezones 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 update​_can​_self​_select Undocumented
Class Variable uses​_savepoints Undocumented
Instance Variable connection Undocumented
Property supports​_explaining​_query​_execution Does this backend support explaining query execution?
allows_group_by_selected_pks: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.allows_group_by_selected_pks

Undocumented

can_clone_databases: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_clone_databases

Undocumented

can_defer_constraint_checks: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_defer_constraint_checks

Undocumented

can_distinct_on_fields: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_distinct_on_fields

Undocumented

can_introspect_materialized_views: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_introspect_materialized_views

Undocumented

can_release_savepoints: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_release_savepoints

Undocumented

can_return_columns_from_insert: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_return_columns_from_insert

Undocumented

can_return_rows_from_bulk_insert: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_return_rows_from_bulk_insert

Undocumented

can_rollback_ddl: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.can_rollback_ddl

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

django_test_skips: dict =
overrides django.db.backends.base.features.BaseDatabaseFeatures.django_test_skips

Undocumented

greatest_least_ignores_nulls: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.greatest_least_ignores_nulls

Undocumented

has_case_insensitive_like: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_case_insensitive_like

Undocumented

has_json_operators: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_json_operators

Undocumented

has_native_duration_field: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_native_duration_field

Undocumented

has_native_json_field: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_native_json_field

Undocumented

has_native_uuid_field: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_native_uuid_field

Undocumented

has_real_datatype: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_real_datatype

Undocumented

has_select_for_no_key_update: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_no_key_update

Undocumented

has_select_for_update: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update

Undocumented

has_select_for_update_nowait: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update_nowait

Undocumented

has_select_for_update_of: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update_of

Undocumented

has_select_for_update_skip_locked: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.has_select_for_update_skip_locked

Undocumented

has_websearch_to_tsquery =

Undocumented

json_key_contains_list_matching_requires_list: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.json_key_contains_list_matching_requires_list

Undocumented

nulls_order_largest: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.nulls_order_largest

Undocumented

only_supports_unbounded_with_preceding_and_following: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.only_supports_unbounded_with_preceding_and_following

Undocumented

requires_casted_case_in_updates: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.requires_casted_case_in_updates

Undocumented

supported_explain_formats: set[str] =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supported_explain_formats

Undocumented

supports_aggregate_filter_clause: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_aggregate_filter_clause

Undocumented

supports_combined_alters: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_combined_alters

Undocumented

supports_covering_gist_indexes =

Undocumented

supports_covering_indexes =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_covering_indexes

Undocumented

supports_deferrable_unique_constraints: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_deferrable_unique_constraints

Undocumented

supports_non_deterministic_collations =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_non_deterministic_collations

Undocumented

supports_over_clause: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_over_clause

Undocumented

supports_slicing_ordering_in_compound: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_slicing_ordering_in_compound

Undocumented

supports_tablespaces: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_tablespaces

Undocumented

supports_temporal_subtraction: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_temporal_subtraction

Undocumented

supports_transactions: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.supports_transactions
Confirm support for transactions.
test_collations: dict[str, str] =
overrides django.db.backends.base.features.BaseDatabaseFeatures.test_collations

Undocumented

test_now_utc_template: str =
overrides django.db.backends.base.features.BaseDatabaseFeatures.test_now_utc_template

Undocumented

validates_explain_options: bool =
overrides django.db.backends.base.features.BaseDatabaseFeatures.validates_explain_options

Undocumented

@cached_property
introspected_field_types =
overrides django.db.backends.base.features.BaseDatabaseFeatures.introspected_field_types

Undocumented

@cached_property
is_postgresql_11 =

Undocumented

@cached_property
is_postgresql_12 =

Undocumented

@cached_property
is_postgresql_13 =

Undocumented