This bug is actually only in 5.7.30, not 8.0.20 (not 100% sure if we made a mistake marking it as fixed in 8.0.21 unless there was some underlying issue that only triggered the NULL result in 5.7)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877442 Title: Broken SQL CONCAT function behaviour in 5.7.30-0ubuntu0.18.04.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1877442/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs