o
    ˷eb5                     @   s4   d dl Z d dlmZ d dlmZ G dd deZdS )    N)BaseDatabaseFeatures)cached_propertyc                       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dZdZdZdZdZdZdZdZdZedd Zedd	 Zed
d Z dZ!edd Z"edd Z#edd Z$edd Z%edd Z&e fddZ'edd Z(e)e*+dZ,edd Z-edd Z.ed d! Z/e)e*+d"Z0ed#d$ Z1e)e*+d%Z2ed&d' Z3ed(d) Z4ed*d+ Z5ed,d- Z6ed.d/ Z7ed0d1 Z8ed2d3 Z9e)e*+d4Z:e)e*+d4Zed5d6 Z;ed7d8 Z<ed9d: Z=ed;d< Z>ed=d> Z?ed?d@ Z@edAdB ZA  ZBS )C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   s   | j jrdS dS )N)
      )      
connectionmysql_is_mariadbselfr   r   X/var/www/ideatree/venv/lib/python3.10/site-packages/django/db/backends/mysql/features.pyminimum_database_version4   s   z)DatabaseFeatures.minimum_database_versionc                 C   s0   | j jr
| j jdk s| j js| j jdk rdS dS )Nr         z
 FROM DUAL r   r   mysql_versionr   r   r   r   bare_select_suffix;   s   z#DatabaseFeatures.bare_select_suffixc                 C   sN   d}| j jr| j jdks| j js| j jdkrd}| d| d| ddS )	Nutf8r      )r   r      utf8mb3_general_ci_esperanto_ci_swedish_ci)cinon_default
swedish_cir   )r   charsetr   r   r   test_collationsF   s   z DatabaseFeatures.test_collationsUTC_TIMESTAMPc                 C   s&  ddhddhdhdhddhd	}d
| j jv r|dddhi | j js5| j jdk r5|ddhddhd | j jrOd| j j  k rEdk rOn n|ddhi | j jrid| j j  k r_dk rin n|ddhi | j jrs| j jdk s}| j js| j jdk r|dh di | js|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_transformzDexpressions.tests.FTimeDeltaTests.test_durationfield_multiply_dividezGupdate.tests.AdvancedTests.test_update_ordered_by_inline_m2m_annotationz@update.tests.AdvancedTests.test_update_ordered_by_m2m_annotation)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 JSONzkMySQL supports multiplying and dividing DurationFields by a scalar value but it's not implemented (#25287).zWUPDATE ... ORDER BY syntax on MySQL/MariaDB does not support ordering byrelated fields.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_m2or   zSaggregation.tests.AggregateTestCase.test_aggregation_default_using_time_from_pythonzWaggregation.tests.AggregateTestCase.test_aggregation_default_using_datetime_from_pythonzUaggregation.tests.AggregateTestCase.test_aggregation_default_using_time_from_databasezYaggregation.tests.AggregateTestCase.test_aggregation_default_using_datetime_from_database)zBCasting to datetime/time is not supported by MySQL < 8.0. (#30224)zBMySQL < 8.0 returns string type instead of datetime/time. (#30224))r   r   r   r   r      z*https://jira.mariadb.org/browse/MDEV-19598zCschema.tests.SchemaTests.test_alter_not_unique_field_to_primary_key)r   r      )r   r   z*https://jira.mariadb.org/browse/MDEV-22775zBschema.tests.SchemaTests.test_alter_pk_with_self_referential_fieldr   zPParenthesized combined queries are not supported on MySQL < 8 and MariaDB < 10.4>   Lqueries.test_qs_combinators.QuerySetSetOperationTests.test_union_in_subqueryQqueries.test_qs_combinators.QuerySetSetOperationTests.test_union_in_with_ordering]queries.test_qs_combinators.QuerySetSetOperationTests.test_union_in_subquery_related_outerrefz%MariaDB and MySQL >= 8.0.18 specific.z4queries.test_explain.ExplainTests.test_mysql_analyze)r   sql_modeupdater   r   supports_explain_analyze)r   skipsr   r   r   django_test_skipsZ   s   



	z"DatabaseFeatures.django_test_skipsc                 C      | j jd S )zGInternal method used in Django tests. Don't rely on this from your codedefault_storage_enginer   mysql_server_datar   r   r   r   _mysql_storage_engine   s   z&DatabaseFeatures._mysql_storage_enginec                 C   s   d| j jv S )zt
        Autoincrement primary key can be set to 0 if it doesn't generate new
        autoincrement values.
        NO_AUTO_VALUE_ON_ZERO)r   r.   r   r   r   r   allows_auto_pk_0   s   z!DatabaseFeatures.allows_auto_pk_0c                 C      | j jo	| j jdkS )N)r   r   r)   r   r   r   r   r   update_can_self_select      z'DatabaseFeatures.update_can_self_selectc                 C   
   | j dkS )z-Confirm support for introspected foreign keysMyISAMr7   r   r   r   r   can_introspect_foreign_keys      
z,DatabaseFeatures.can_introspect_foreign_keysc                    s   i t  jdddddS )N	TextFieldIntegerFieldBigIntegerField	CharField)BinaryFieldBooleanFieldDurationFieldGenericIPAddressField)superintrospected_field_typesr   	__class__r   r   rK      s   z)DatabaseFeatures.introspected_field_typesc                 C   r:   )N)r   r   r   r   r   r   r   r   can_return_columns_from_insert   r<   z/DatabaseFeatures.can_return_columns_from_insertrN   c                 C   r3   )Nhas_zoneinfo_databaser5   r   r   r   r   rO         z&DatabaseFeatures.has_zoneinfo_databasec                 C   r3   )Nsql_auto_is_nullr5   r   r   r   r   is_sql_auto_is_null_enabled  rP   z,DatabaseFeatures.is_sql_auto_is_null_enabledc                 C      | j jrdS | j jdkS )NT)r   r   r)   r   r   r   r   r   supports_over_clause     z%DatabaseFeatures.supports_over_clauserT   c                 C   rS   )NTr   r      r   r   r   r   r   !supports_column_check_constraints  rU   z2DatabaseFeatures.supports_column_check_constraintsrX   c                 C   s$   | j jr| j j}|dkS | j jdkS )N)r   r   r   rV   r   )r   versionr   r   r    can_introspect_check_constraints  s   z1DatabaseFeatures.can_introspect_check_constraintsc                 C   s    | j jr
| j jdkS | j jdkS )Nr   r   r      r   r   r   r   r   !has_select_for_update_skip_locked!  s   z2DatabaseFeatures.has_select_for_update_skip_lockedc                 C   rS   )NTr[   r   r   r   r   r   has_select_for_update_nowait'  rU   z-DatabaseFeatures.has_select_for_update_nowaitc                 C   s   | j j o
| j jdkS )Nr[   r   r   r   r   r   has_select_for_update_of-  s   

z)DatabaseFeatures.has_select_for_update_ofc                 C   s   | j jp	| j jdkS )N)r   r      r   r   r   r   r   r0   4  r<   z)DatabaseFeatures.supports_explain_analyzec                 C   s*   h d}| j js| j jdkr|d |S )N>   JSONTEXTTRADITIONALrV   TREE)r   r   r   add)r   formatsr   r   r   supported_explain_formats<  s   
z*DatabaseFeatures.supported_explain_formatsc                 C   r=   )zI
        All storage engines except MyISAM support transactions.
        r>   r?   r   r   r   r   supports_transactionsI  s   
z&DatabaseFeatures.supports_transactionsrh   c                 C   r3   )Nlower_case_table_namesr5   r   r   r   r   ignores_table_name_caseS  rP   z(DatabaseFeatures.ignores_table_name_casec                 C   s
   | j j S Nr
   r   r   r   r   supports_default_in_lead_lagW  rA   z-DatabaseFeatures.supports_default_in_lead_lagc                 C   rS   )NT)r   r	   r   r   r   r   r   r   supports_json_field\  rU   z$DatabaseFeatures.supports_json_fieldc                 C   s   | j jr
| jo	| jS | jS rk   )r   r   rm   rZ   r   r   r   r   can_introspect_json_fieldb  s   z*DatabaseFeatures.can_introspect_json_fieldc                 C   s.   | j dkrdS | jjr| jjdkS | jjdkS )NInnoDBF)r   r   r[   )r7   r   r   r   r   r   r   r   supports_index_column_orderingh  s
   
z/DatabaseFeatures.supports_index_column_orderingc                 C   s    | j j o| jdko| j jdkS )Nr>   )r   r      )r   r   r7   r   r   r   r   r   supports_expression_indexesp  s
   

z,DatabaseFeatures.supports_expression_indexesc                 C   s   | j jr
| j jdkS dS )Nr(   Tr   r   r   r   r   can_rename_indexx  s   z!DatabaseFeatures.can_rename_index)C__name__
__module____qualname__empty_fetchmany_valueallows_group_by_pkrelated_fields_match_typeallow_sliced_subqueries_with_inhas_select_for_updatesupports_forward_referencessupports_regex_backreferencing!supports_date_lookup_using_stringsupports_timezones-requires_explicit_null_ordering_when_groupingcan_release_savepointsatomic_transactionscan_clone_databasessupports_temporal_subtractionsupports_select_intersectionsupports_select_difference%supports_slicing_ordering_in_compoundsupports_index_on_text_fieldsupports_update_conflicts(create_test_procedure_without_params_sql(create_test_procedure_with_int_param_sqlsupports_partial_indexescollate_as_index_expression supports_order_by_nulls_modifierorder_by_nulls_firstsupports_logical_xorr   r   r   r%   test_now_utc_templater2   r7   r9   r;   r@   rK   rN   propertyoperator
attrgetter can_return_rows_from_bulk_insertrO   rR   rT   #supports_frame_range_fixed_distancerX    supports_table_check_constraintsrZ   r]   r^   r_   r0   rg   rh   uses_savepointsrj   rl   rm   rn   rp   rr   rs   __classcell__r   r   rL   r   r      s    




s



	

















r   )r    django.db.backends.base.featuresr   django.utils.functionalr   r   r   r   r   r   <module>   s    