B
    CVvgn%  ã               @   s4   d dl Z d dlmZ d dlmZ G dd„ deƒZdS )é    N)ÚBaseDatabaseFeatures)Úcached_propertyc                   sÎ  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dZdZdZdZdZdZdZdZedd„ ƒZedd	„ ƒZed
d„ ƒZedd„ ƒZ edd„ ƒZ!edd„ ƒZ"e‡ fdd„ƒZ#edd„ ƒZ$e%e& 'd¡ƒZ(edd„ ƒZ)edd„ ƒZ*edd„ ƒZ+e%e& 'd¡ƒZ,edd„ ƒZ-e%e& 'd ¡ƒZ.ed!d"„ ƒZ/ed#d$„ ƒZ0ed%d&„ ƒZ1ed'd(„ ƒZ2ed)d*„ ƒZ3ed+d,„ ƒZ4ed-d.„ ƒZ5ed/d0„ ƒZ6ed1d2„ ƒZ7ed3d4„ ƒZ8ed5d6„ ƒZ9ed7d8„ ƒZ:ed9d:„ ƒZ;‡  Z<S );ÚDatabaseFeatures© TFz…
        CREATE PROCEDURE test_procedure ()
        BEGIN
            DECLARE V_I INTEGER;
            SET V_I = 1;
        END;
    z’
        CREATE PROCEDURE test_procedure (P_I INTEGER)
        BEGIN
            DECLARE V_I INTEGER;
            SET V_I = P_I;
        END;
    c             C   sN   d}| j jr| j jdks,| j js0| j jdkr0d}|› d�|› d�|› d�dœS )	NÚutf8)é
   é   )é   r   é   Zutf8mb3Z_general_ciZ_esperanto_ciZ_swedish_ci)ZciZnon_defaultZ
swedish_ci)Ú
connectionÚmysql_is_mariadbÚmysql_version)ÚselfÚcharsetr   r   úE/tmp/pip-install-o3oxmrkh/Django/django/db/backends/mysql/features.pyÚtest_collations3   s    z DatabaseFeatures.test_collationsc             C   s¶   ddhddhdhdœ}d| j jkr4| dd	d
hi¡ | j jrhd| j j  k rTdk rhn n| ddhi¡ | j jrœd| j j  k rˆdk rœn n| ddhi¡ | js²| ddhi¡ |S )NzLdb_functions.comparison.test_greatest.GreatestTests.test_coalesce_workaroundzFdb_functions.comparison.test_least.LeastTests.test_coalesce_workaroundz5model_fields.test_textfield.TextFieldTests.test_emojiz4model_fields.test_charfield.TestCharField.test_emojiz;schema.tests.SchemaTests.test_func_index_json_key_transform)zThis doesn't work on MySQL.z4Running on MySQL requires utf8mb4 encoding (#18392).zHMySQL doesn't support functional indexes on a function that returns JSONZONLY_FULL_GROUP_BYzjGROUP BY optimization does not work properly when ONLY_FULL_GROUP_BY mode is enabled on MySQL, see #31331.zTaggregation.tests.AggregateTestCase.test_aggregation_subquery_annotation_multivaluedzSannotations.tests.NonAggregateAnnotationTestCase.test_annotation_aggregate_with_m2o)r   é   é   )r   é   é   z*https://jira.mariadb.org/browse/MDEV-19598zCschema.tests.SchemaTests.test_alter_not_unique_field_to_primary_key)r   r   é   )r   r   z*https://jira.mariadb.org/browse/MDEV-22775zBschema.tests.SchemaTests.test_alter_pk_with_self_referential_fieldz%MariaDB and MySQL >= 8.0.18 specific.z4queries.test_explain.ExplainTests.test_mysql_analyze)r   Úsql_modeÚupdater   r   Úsupports_explain_analyze)r   Úskipsr   r   r   Údjango_test_skipsE   s2    




z"DatabaseFeatures.django_test_skipsc             C   s   | j jd S )zGInternal method used in Django tests. Don't rely on this from your codeZdefault_storage_engine)r   Úmysql_server_data)r   r   r   r   Ú_mysql_storage_enginew   s    z&DatabaseFeatures._mysql_storage_enginec             C   s   d| j jkS )zt
        Autoincrement primary key can be set to 0 if it doesn't generate new
        autoincrement values.
        ZNO_AUTO_VALUE_ON_ZERO)r   r   )r   r   r   r   Úallows_auto_pk_0|   s    z!DatabaseFeatures.allows_auto_pk_0c             C   s   | j jo| j jdkS )N)r   r   r   )r   r   r   )r   r   r   r   Úupdate_can_self_select„   s    z'DatabaseFeatures.update_can_self_selectc             C   s
   | j dkS )z-Confirm support for introspected foreign keysÚMyISAM)r   )r   r   r   r   Úcan_introspect_foreign_keysˆ   s    z,DatabaseFeatures.can_introspect_foreign_keysc                s   t ƒ jdddddœ–S )NZ	TextFieldZIntegerFieldZBigIntegerFieldZ	CharField)ZBinaryFieldZBooleanFieldZDurationFieldZGenericIPAddressField)ÚsuperÚintrospected_field_types)r   )Ú	__class__r   r   r#   �   s
    z)DatabaseFeatures.introspected_field_typesc             C   s   | j jo| j jdkS )N)r   r   r   )r   r   r   )r   r   r   r   Úcan_return_columns_from_insert—   s    z/DatabaseFeatures.can_return_columns_from_insertr%   c             C   s   | j jd S )NÚhas_zoneinfo_database)r   r   )r   r   r   r   r&   �   s    z&DatabaseFeatures.has_zoneinfo_databasec             C   s   | j jd S )NZsql_auto_is_null)r   r   )r   r   r   r   Úis_sql_auto_is_null_enabled¡   s    z,DatabaseFeatures.is_sql_auto_is_null_enabledc             C   s   | j jrdS | j jdkS )NT)r	   r   r   )r   r   r   )r   r   r   r   Úsupports_over_clause¥   s    z%DatabaseFeatures.supports_over_clauser(   c             C   s    | j jr| j jdkS | j jdkS )N)r   r   é   )r	   r   é   )r   r   r   )r   r   r   r   Ú!supports_column_check_constraints­   s    z2DatabaseFeatures.supports_column_check_constraintsr+   c             C   s4   | j jr(| j j}|dkr |dk p&|dkS | j jdkS )N)r   r   é   )r   r   )r   r   r   )r	   r   r*   )r   r   r   )r   Úversionr   r   r   Ú can_introspect_check_constraintsµ   s    z1DatabaseFeatures.can_introspect_check_constraintsc             C   s   | j j o| j jdkS )N)r	   r   r)   )r   r   r   )r   r   r   r   Ú!has_select_for_update_skip_locked¼   s    z2DatabaseFeatures.has_select_for_update_skip_lockedc             C   s    | j jr| j jdkS | j jdkS )N)r   r   r   )r	   r   r)   )r   r   r   )r   r   r   r   Úhas_select_for_update_nowaitÀ   s    z-DatabaseFeatures.has_select_for_update_nowaitc             C   s   | j j o| j jdkS )N)r	   r   r)   )r   r   r   )r   r   r   r   Úhas_select_for_update_ofÆ   s    z)DatabaseFeatures.has_select_for_update_ofc             C   s   | j jp| j jdkS )N)r	   r   é   )r   r   r   )r   r   r   r   r   Ê   s    z)DatabaseFeatures.supports_explain_analyzec             C   s,   dddh}| j js(| j jdkr(| d¡ |S )NZJSONZTEXTZTRADITIONAL)r	   r   r*   ZTREE)r   r   r   Úadd)r   Úformatsr   r   r   Úsupported_explain_formatsÎ   s    

z*DatabaseFeatures.supported_explain_formatsc             C   s
   | j dkS )zI
        All storage engines except MyISAM support transactions.
        r    )r   )r   r   r   r   Úsupports_transactions×   s    z&DatabaseFeatures.supports_transactionsc             C   s   | j jd S )NZlower_case_table_names)r   r   )r   r   r   r   Úignores_table_name_caseÞ   s    z(DatabaseFeatures.ignores_table_name_casec             C   s
   | j j S )N)r   r   )r   r   r   r   Úsupports_default_in_lead_lagâ   s    z-DatabaseFeatures.supports_default_in_lead_lagc             C   s    | j jr| j jdkS | j jdkS )N)r   r   é   )r   r9   r	   )r   r   r   )r   r   r   r   Úsupports_json_fieldç   s    z$DatabaseFeatures.supports_json_fieldc             C   s   | j jr| jo| jS | jS )N)r   r   r:   r.   )r   r   r   r   Úcan_introspect_json_fieldí   s    z*DatabaseFeatures.can_introspect_json_fieldc             C   s   | j j o| j jdkS )N)r	   r   r)   )r   r   r   )r   r   r   r   Úsupports_index_column_orderingó   s    
z/DatabaseFeatures.supports_index_column_orderingc             C   s   | j j o| j jdkS )N)r	   r   é   )r   r   r   )r   r   r   r   Úsupports_expression_indexesú   s    
z,DatabaseFeatures.supports_expression_indexes)=Ú__name__Ú
__module__Ú__qualname__Zempty_fetchmany_valueZallows_group_by_pkZrelated_fields_match_typeZallow_sliced_subqueries_with_inZhas_select_for_updateZsupports_forward_referencesZsupports_regex_backreferencingZ!supports_date_lookup_using_stringZsupports_timezonesZ-requires_explicit_null_ordering_when_groupingZcan_release_savepointsZatomic_transactionsZcan_clone_databasesZsupports_temporal_subtractionZsupports_select_intersectionZsupports_select_differenceZ%supports_slicing_ordering_in_compoundZsupports_index_on_text_fieldZhas_case_insensitive_likeZ(create_test_procedure_without_params_sqlZ(create_test_procedure_with_int_param_sqlZsupports_partial_indexesZcollate_as_index_expressionZ supports_order_by_nulls_modifierZorder_by_nulls_firstr   r   r   r   r   r   r!   r#   r%   ÚpropertyÚoperatorÚ
attrgetterZ can_return_rows_from_bulk_insertr&   r'   r(   Z#supports_frame_range_fixed_distancer+   Z supports_table_check_constraintsr.   r/   r0   r1   r   r5   r6   r7   r8   r:   r;   r<   r>   Ú__classcell__r   r   )r$   r   r      sj   2
	r   )rC   Z django.db.backends.base.featuresr   Zdjango.utils.functionalr   r   r   r   r   r   Ú<module>   s   