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    N)transaction)BaseDatabaseFeatures)OperationalError)cached_property   )Databasec                       s  e Zd ZdZdZdZdZdZdZdZ	dZ
dZdZdZdZdZdZdZdZdZejdkZdZdZdZdZdZdZdZdZdZdZ dZ!dZ"ddddd	Z#d
hZ$dZ%dZ&dZ'e(dd Z)e( fddZ*e(dd Z+e,e-.dZ/e,e-.dZ0e(dd Z1e,e-.dZ2  Z3S )DatabaseFeatures)      FTi  r	   )r	   #      nocasebinary)cicsnon_defaultvirtualz9expressions.tests.FTimeDeltaTests.test_mixed_comparisons1z
        CREATE TABLE test_table_composite_pk (
            column_1 INTEGER NOT NULL,
            column_2 INTEGER NOT NULL,
            PRIMARY KEY(column_1, column_2)
        )
    z"INSERT INTO {} ("null") VALUES (1)c                 C   sV   dhh dh ddhd}| j  r|ddhdhd	 |S |d
hdhd |S )NzZmodel_fields.test_decimalfield.DecimalFieldTests.test_fetch_from_db_without_float_rounding>   4schema.tests.SchemaTests.test_unique_and_reverse_m2m<schema.tests.SchemaTests.test_unique_no_unnecessary_fk_dropsHschema.tests.SchemaTests.test_alter_field_default_doesnt_perform_queriesKschema.tests.SchemaTests.test_rename_column_renames_deferred_sql_references>   Idb_functions.math.test_round.RoundTests.test_null_with_negative_precisionJdb_functions.math.test_round.RoundTests.test_float_with_negative_precisionLdb_functions.math.test_round.RoundTests.test_decimal_with_negative_precisionLdb_functions.math.test_round.RoundTests.test_integer_with_negative_precisionz>backends.base.test_base.ExecuteWrapperTests.test_wrapper_debug)z6SQLite stores values rounded to 15 significant digits.z5SQLite naively remakes the table on field alteration.z6SQLite doesn't support negative precision for ROUND().z/The actual query cannot be determined on SQLitezJservers.test_liveserverthread.LiveServerThreadTest.test_closes_connectionszGservers.tests.LiveServerTestCloseConnectionTest.test_closes_connectionszbtest_utils.tests.AssertNumQueriesUponConnectionTests.test_ignores_connection_configuration_queries)zOthe sqlite backend's close() method is a no-op when using an in-memory databasezHFor SQLite in-memory tests, closing the connection destroysthe database.zMservers.tests.LiveServerInMemoryDatabaseLockTest.test_in_memory_database_lockz`backends.sqlite.test_creation.TestDbSignatureTests.test_get_test_db_clone_settings_not_supported)zOOnly connections to in-memory SQLite databases are passed to the server thread.zMmultiprocessing's start method is checked only for in-memory SQLite databases)
connectionis_in_memory_dbupdate)selfskips r    V/var/www/html/venv/lib/python3.10/site-packages/django/db/backends/sqlite3/features.pydjango_test_skips@   s2   
z"DatabaseFeatures.django_test_skipsc                    s   i t  jdddddS )N	AutoFieldBigIntegerField	CharField)BigAutoFieldDurationFieldGenericIPAddressFieldSmallAutoField)superintrospected_field_typesr   	__class__r    r!   r+      s   z)DatabaseFeatures.introspected_field_typesc              	   C   s   | j  8}zt| j j |d W d    n1 sw   Y  W n ty4   Y W d    dS w W d    dS 1 s@w   Y  dS )NzSELECT JSON('{"a": "b"}')FT)r   cursorr   atomicaliasexecuter   )r   r/   r    r    r!   supports_json_field   s   
z$DatabaseFeatures.supports_json_fieldr3   c                 C   s
   t jdkS )N)r	   r   )r   sqlite_version_infor,   r    r    r!   can_return_columns_from_insert   s   
z/DatabaseFeatures.can_return_columns_from_insertr5   )4__name__
__module____qualname__minimum_database_version#test_db_allows_multiple_connectionssupports_unspecified_pksupports_timezonesmax_query_paramssupports_transactionsatomic_transactionscan_rollback_ddlcan_create_inline_fkrequires_literal_defaultscan_clone_databasessupports_temporal_subtractionignores_table_name_casesupports_cast_with_precisiontime_cast_precisioncan_release_savepointshas_case_insensitive_liker   r4   can_alter_table_drop_column supports_parentheses_in_compoundcan_defer_constraint_checkssupports_over_clause#supports_frame_range_fixed_distancesupports_frame_exclusion supports_aggregate_filter_clauseorder_by_nulls_firstsupports_json_field_containssupports_update_conflicts%supports_update_conflicts_with_target!supports_stored_generated_columns"supports_virtual_generated_columnstest_collationsdjango_test_expected_failures,create_test_table_with_composite_primary_keyinsert_test_table_with_defaults"supports_default_keyword_in_insertr   r"   r+   r3   propertyoperator
attrgettercan_introspect_json_fieldhas_json_object_functionr5    can_return_rows_from_bulk_insert__classcell__r    r    r-   r!   r      sl    
	
>	
	
r   )r]   	django.dbr    django.db.backends.base.featuresr   django.db.utilsr   django.utils.functionalr   baser   r   r    r    r    r!   <module>   s    