Control: tags -1 moreinfo > MariaDB 10.1.37 (Debian Stretch version) : cardinality is OK : no problem > (but not same cardinality ...) ! > MariaDB 10.2.22 (Debian MariaDB repository) : cardinality is NOT ok : problem > MariaDB 10.3.12 (Debian MariaDB repository) : cardinality is NOT ok : problem
There is no indication that this is related to Debian packaging so as the Debian packager I will probably not look into this deeper due to lack of time. MariaDB 10.2 has not even ever been in Debian. I recommend you look in the MariaDB issue tracker if this has been reported there or not. Also, you should also provide a test case so your bug can easily be reproduced and debugged, which means supplying some CREATE TABLE and INSERT statements so the problematic database can be at least partially reconstructed for debugging.
