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Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock
Posted by: Olivier Dasini
Date: July 18, 2019 02:55AM


The explain plan you get it is not necessary the explain plan used during the delete.
You can have the effective explain plan by using :

you can do a SHOW PROCESSLIST to get the query id than the EXPLAIN FOR CONNECTION <queryID>

If you can please send the result of :
SHOW CREATE TABLE cid_operation\G
ANALYZE TABLE cid_operation; SHOW TABLE STATUS LIKE 'cid_operation'\G

and same for cid_flight_point

In order to get a better idea what the schema is.

Anyway I agree with you an index on (id_env_case,id) could be useful in this case.


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