MariaDB和MySQL中不同的执行时间

我在MariaDB 10.x中执行了一个复杂的查询，在MySQL 5.6中执行了同样的查询，请参见下面的SQL。在MariaDB中，执行时间为25秒，而MySQL为0.01秒

my.ini中的所有参数也相同

你知道为什么会有这样的差异吗

select distinct
resourcety0_.VERSION_ as VERSION1_78_0_,
resourceus1_.ID as ID88_1_,
[... 20 more fields],
case
    when resourceco2_12_.VERSION_ is not null then 12
    when resourceco2_2_.VERSION_ is not null then 2
    [... 20 more cases]
end as clazz_2_
from
BINARY_GUVNOR_RESOURCE_CONTE_0 resourceco2_2_ ON resourceco2_.VERSION_ = resourceco2_2_.VERSION_
    left outer join
DATA_OBJECT_RESOURCE_CONTENT_0 resourceco2_3_ ON resourceco2_.VERSION_ = resourceco2_3_.VERSION_
    left outer join
[... 20 more outer and inner joins]
where
(resourcety0_.RESOURCE_TYPE in ('ARGUMENT1' , 'ARGUMENT2',
    'ARGUMENT3',
    'ARGUMENT4',
    'ARGUMENT5',
    'ARGUMENT6'))
    and resourcety0_.ID = resourceus1_.ID
    and not (exists( select 
        resourcety10_.VERSION_
    from
        RESOURCE_TYPE resourcety10_
            inner join
        VERSION_INFO_TYPE resourcety10_1_ ON resourcety10_.VERSION_ = resourcety10_1_.VERSION_
    where
        resourcety0_.ID = resourcety10_.ID
            and resourcety0_.VERSION_ = resourcety10_1_.PREVIOUS_VERSION))
    and (resourceus1_.OWNER_ID = 'string1'
    or (permission5_.HJVALUE in ('string2' , 'string1'))
    and resourceus1_.OWNER_ID <> 'string1'
    or (permission8_.HJVALUE in ('string2' , 'string1'))
    and resourceus1_.OWNER_ID <> 'string1')
    and resourcety0_1_.DELETED = 0
    and (configurat9_.DTYPE in ('string3'))
order by resourcety0_1_.CREATED ASC

下面是MySQL解释结果：

id;select_type;table;type;possible_keys;key;key_len;ref;rows;Extra
1;PRIMARY;configurat9_;ALL;PRIMARY; ; ; ;5;Using where; Using temporary; Using filesort
1;PRIMARY;resourceco2_4_;ref;PRIMARY,FK9F028B5C42E2A693,FK9F028B5CA7E5C40E;FK9F028B5CA7E5C40E;9;db_data.configurat9_.HJID;1;Using index
1;PRIMARY;resourceco2_;eq_ref;PRIMARY;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_5_;eq_ref;PRIMARY,FKAAE0AD5242E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_6_;eq_ref;PRIMARY,FK842528CF42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_7_;eq_ref;PRIMARY,FKF5BDD9B6DDDE48DC;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_8_;eq_ref;PRIMARY,FK415ED7006A929478;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_9_;eq_ref;PRIMARY,FK561F66796A929478;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_10_;eq_ref;PRIMARY,FKE6A69C9D42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_11_;eq_ref;PRIMARY,FK98392DBD65A46193;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_12_;eq_ref;PRIMARY,FK385C086331440E6;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_13_;eq_ref;PRIMARY,FKA7D0407442E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourcety0_;ref;PRIMARY,FKF5E4E4CB5B468256,FKF5E4E4CB894B8877,RESOURCE_ID,RESOURCE_TYPE;FKF5E4E4CB5B468256;39;db_data.resourceco2_4_.VERSION_;1;Using where
1;PRIMARY;resourceco2_14_;eq_ref;PRIMARY,FKF4B8FF842E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using where
1;PRIMARY;resourceco2_15_;eq_ref;PRIMARY,FKF5C0D3FA42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using where
1;PRIMARY;resourceco2_16_;eq_ref;PRIMARY,FKD4B1081342E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using where; Using index
1;PRIMARY;resourceco2_17_;eq_ref;PRIMARY,FKF7E6486F42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_18_;eq_ref;PRIMARY,FK627B607D42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_1_;eq_ref;PRIMARY,FKA8E578BBDDDE48DC;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_2_;eq_ref;PRIMARY,FKBFEDBDCB65A46193;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_19_;eq_ref;PRIMARY,FKE15CF71A42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using where
1;PRIMARY;resourceco2_20_;eq_ref;PRIMARY,FKBA3EF7D442E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using where
1;PRIMARY;resourceco2_21_;eq_ref;PRIMARY,FKEF28EDEE42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;
1;PRIMARY;resourceco2_3_;eq_ref;PRIMARY,FK545CBF84DDDE48DC;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using index
1;PRIMARY;resourcety0_1_;eq_ref;PRIMARY,VERSION_INFO_DELETED;PRIMARY;38;db_data.resourcety0_.VERSION_;1;Using where
1;PRIMARY;resourceus1_;eq_ref;PRIMARY,RESOURCE_USAGE_PERMISSION_OWNER_ID;PRIMARY;38;db_data.resourcety0_.ID;1;Using where
1;PRIMARY;permission3_;ref;FK4D42693835DD5F6E;FK4D42693835DD5F6E;38;db_data.resourcety0_.ID;1;Using where; Distinct
1;PRIMARY;resourceus4_;eq_ref;PRIMARY;PRIMARY;38;db_data.permission3_.CHILD_RESOURCE_USAGE_PERMISS_0;1;Using where; Using index; Distinct
1;PRIMARY;permission5_;ref;PRIMARY,FKFE973D132992B6A5;PRIMARY;38;db_data.resourceus4_.ID;1;Using where; Distinct
1;PRIMARY;inheritedp6_;ref;FK4D42693935DD5F6E;FK4D42693935DD5F6E;38;db_data.resourcety0_.ID;1;Using where; Distinct
1;PRIMARY;resourceus7_;eq_ref;PRIMARY;PRIMARY;38;db_data.inheritedp6_.CHILD_RESOURCE_USAGE_PERMISS_0;1;Using where; Using index; Distinct
1;PRIMARY;permission8_;ref;PRIMARY,FKFE973D132992B6A5;PRIMARY;38;db_data.resourceus7_.ID;1;Using where; Distinct
2;MATERIALIZED;resourcety10_1_;range;PRIMARY,VERSION_INFO_PREVIOUS_VERSION,VERSION_INFO_LAST_CHANGED,VERSION_INFO_DELETED,VERSION_INFO_CREATED;VERSION_INFO_PREVIOUS_VERSION;39; ;1;Using where; Using index
2;MATERIALIZED;resourcety10_;eq_ref;PRIMARY,FKF5E4E4CB3F390ABD,FKF5E4E4CB5B468256,FKF5E4E4CB894B8877,RESOURCE_LOCKED,RESOURCE_NAME,RESOURCE_ID,RESOURCE_TYPE;PRIMARY;38;db_data.resourcety10_1_.VERSION_;1;Using where

id;select_type;table;type;possible_keys;key;key_len;ref;rows;Extra
1;PRIMARY;resourceco2_4_;index;PRIMARY,FK9F028B5C42E2A693,FK9F028B5CA7E5C40E;FK9F028B5CA7E5C40E;9; ;6;Using where; Using index; Using temporary; Using filesort
1;PRIMARY;resourcety0_;ref;PRIMARY,FKF5E4E4CB5B468256,FKF5E4E4CB894B8877,RESOURCE_ID,RESOURCE_TYPE;FKF5E4E4CB5B468256;39;db_data.resourceco2_4_.VERSION_;1;Using where
1;PRIMARY;configurat9_;eq_ref;PRIMARY;PRIMARY;8;db_data.resourceco2_4_.CONFIGURATION_CONFIGURATION__0;1;Using where
1;PRIMARY;resourceco2_;eq_ref;PRIMARY;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_1_;eq_ref;PRIMARY,FKA8E578BBDDDE48DC;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_2_;eq_ref;PRIMARY,FKBFEDBDCB65A46193;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceus1_;eq_ref;PRIMARY,RESOURCE_USAGE_PERMISSION_OWNER_ID;PRIMARY;38;db_data.resourcety0_.ID;1;Using where
1;PRIMARY;resourceco2_3_;eq_ref;PRIMARY,FK545CBF84DDDE48DC;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using index
1;PRIMARY;permission3_;ref;FK4D42693835DD5F6E;FK4D42693835DD5F6E;38;db_data.resourcety0_.ID;1; 
1;PRIMARY;resourcety0_1_;eq_ref;PRIMARY,VERSION_INFO_DELETED;PRIMARY;38;db_data.resourcety0_.VERSION_;1;Using where
1;PRIMARY;resourceus4_;eq_ref;PRIMARY;PRIMARY;38;db_data.permission3_.CHILD_RESOURCE_USAGE_PERMISS_0;1;Using index
1;PRIMARY;permission5_;ref;PRIMARY,FKFE973D132992B6A5;PRIMARY;38;db_data.resourceus4_.ID;1;Using where
1;PRIMARY;inheritedp6_;ref;FK4D42693935DD5F6E;FK4D42693935DD5F6E;38;db_data.resourcety0_.ID;1; 
1;PRIMARY;resourceus7_;eq_ref;PRIMARY;PRIMARY;38;db_data.inheritedp6_.CHILD_RESOURCE_USAGE_PERMISS_0;1;Using index
1;PRIMARY;permission8_;ref;PRIMARY,FKFE973D132992B6A5;PRIMARY;38;db_data.resourceus7_.ID;1;Using where
1;PRIMARY;resourceco2_5_;ALL;PRIMARY,FKAAE0AD5242E2A693; ; ; ;1;Using where; Using join buffer (Block Nested Loop)
1;PRIMARY;resourceco2_6_;eq_ref;PRIMARY,FK842528CF42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_7_;eq_ref;PRIMARY,FKF5BDD9B6DDDE48DC;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_8_;eq_ref;PRIMARY,FK415ED7006A929478;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_9_;ALL;PRIMARY,FK561F66796A929478; ; ; ;1;Using where; Using join buffer (Block Nested Loop)
1;PRIMARY;resourceco2_10_;eq_ref;PRIMARY,FKE6A69C9D42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_11_;eq_ref;PRIMARY,FK98392DBD65A46193;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_12_;ALL;PRIMARY,FK385C086331440E6; ; ; ;1;Using where; Using join buffer (Block Nested Loop)
1;PRIMARY;resourceco2_13_;eq_ref;PRIMARY,FKA7D0407442E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_14_;eq_ref;PRIMARY,FKF4B8FF842E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_15_;eq_ref;PRIMARY,FKF5C0D3FA42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_16_;eq_ref;PRIMARY,FKD4B1081342E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1;Using index
1;PRIMARY;resourceco2_17_;eq_ref;PRIMARY,FKF7E6486F42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_18_;ALL;PRIMARY,FK627B607D42E2A693; ; ; ;1;Using where; Using join buffer (Block Nested Loop)
1;PRIMARY;resourceco2_19_;eq_ref;PRIMARY,FKE15CF71A42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_20_;eq_ref;PRIMARY,FKBA3EF7D442E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
1;PRIMARY;resourceco2_21_;eq_ref;PRIMARY,FKEF28EDEE42E2A693;PRIMARY;38;db_data.resourceco2_4_.VERSION_;1; 
2;DEPENDENT SUBQUERY;resourcety10_1_;ref;PRIMARY,VERSION_INFO_PREVIOUS_VERSION;VERSION_INFO_PREVIOUS_VERSION;39;db_data.resourcety0_.VERSION_;1;Using index
2;DEPENDENT SUBQUERY;resourcety10_;eq_ref;PRIMARY,FKF5E4E4CB894B8877,RESOURCE_ID;PRIMARY;38;db_data.resourcety10_1_.VERSION_;1;Using where

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请添加解释选择的结果…ini可能是唯一的。。。但是你检查了数据库的模式以确保不同的索引和实际数据是相同的吗？我将相同的转储导入到两个数据库中。。。使用MySQL和MariaDB。似乎configurat9_表联接存在一些问题。检查此表的索引并向我们显示内部联接。尝试在MariaDB中强制执行与MySQL中相同的联接顺序。