@@ -25,8 +25,8 @@ ORDER BY sysapproval_approver0.`order`
LIMIT 0, 50 ;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE task2 range PRIMARY,sys_class_name_2,sys_domain_path PRIMARY 96 NULL 1 0.00 100.00 100.00 Using where; Using temporary; Using filesort
1 SIMPLE task1 ref PRIMARY,task_parent,sys_class_name_2,sys_domain_path task_parent 99 mdev25830.task2.sys_id 1 NULL 100.00 NULL Using index condition; Using where
1 SIMPLE sysapproval_approver0 ref sysapproval_approver_ref5,sys_domain_path,sysapproval_approver_CHG1975376 sysapproval_approver_ref5 99 mdev25830.task1.sys_id 1 NULL 100.00 NULL Using index condition; Using where
1 SIMPLE task1 ref PRIMARY,task_parent,sys_class_name_2,sys_domain_path task_parent 99 test.task2.sys_id 1 NULL 100.00 NULL Using index condition; Using where
1 SIMPLE sysapproval_approver0 ref sysapproval_approver_ref5,sys_domain_path,sysapproval_approver_CHG1975376 sysapproval_approver_ref5 99 test.task1.sys_id 1 NULL 100.00 NULL Using index condition; Using where
set optimizer_use_condition_selectivity=4;
analyze SELECT sysapproval_approver0.`sys_id`
FROM ((sysapproval_approver sysapproval_approver0
...
...
@@ -48,8 +48,9 @@ ORDER BY sysapproval_approver0.`order`
LIMIT 0, 50 ;
id select_type table type possible_keys key key_len ref rows r_rows filtered r_filtered Extra
1 SIMPLE task2 range PRIMARY,sys_class_name_2,sys_domain_path PRIMARY 96 NULL 1 0.00 98.00 100.00 Using where; Using temporary; Using filesort
1 SIMPLE task1 ref PRIMARY,task_parent,sys_class_name_2,sys_domain_path task_parent 99 mdev25830.task2.sys_id 1 NULL 100.00 NULL Using index condition; Using where
1 SIMPLE sysapproval_approver0 ref sysapproval_approver_ref5,sys_domain_path,sysapproval_approver_CHG1975376 sysapproval_approver_ref5 99 mdev25830.task1.sys_id 1 NULL 100.00 NULL Using index condition; Using where
1 SIMPLE task1 ref PRIMARY,task_parent,sys_class_name_2,sys_domain_path task_parent 99 test.task2.sys_id 1 NULL 100.00 NULL Using index condition; Using where
1 SIMPLE sysapproval_approver0 ref sysapproval_approver_ref5,sys_domain_path,sysapproval_approver_CHG1975376 sysapproval_approver_ref5 99 test.task1.sys_id 1 NULL 100.00 NULL Using index condition; Using where
drop table sysapproval_approver,task;
set global innodb_stats_persistent= @innodb_stats_persistent_save;
# The following explain is left here from the original bug report.
# Can be useful if one gets this issue again in a future MariaDB version
#explain format= json SELECT sysapproval_approver0.`sys_id` FROM ((sysapproval_approver sysapproval_approver0 INNER JOIN task task1 ON sysapproval_approver0.`sysapproval` = task1.`sys_id` AND ((task1.`sys_domain_path` = '/' OR task1.`sys_domain_path` LIKE '!!!/!!#/!!$/%' OR task1.`sys_domain_path` LIKE '!!!/!!!/%'))) INNER JOIN task task2 ON task1.`parent` = task2.`sys_id` AND ((task2.`sys_domain_path` = '/' OR task2.`sys_domain_path` LIKE '!!!/!!#/!!$/%' OR task2.`sys_domain_path` LIKE '!!!/!!!/%'))) WHERE task2.`sys_id` LIKE '8e7792a7dbfffb00fff8a345ca961934%' AND (sysapproval_approver0.`sys_domain_path` = '/' OR sysapproval_approver0.`sys_domain_path` LIKE '!!!/!!#/!!$/%' OR sysapproval_approver0.`sys_domain_path` LIKE '!!!/!!!/%') ORDER BY sysapproval_approver0.`order` LIMIT 0, 50;
...
...
@@ -96,15 +97,7 @@ WHERE task2.`sys_id` LIKE '8e7792a7dbfffb00fff8a345ca961934%'