Apparently the comment in your Github PR was wrong then in https://github.com/MariaDB/mariadb-connector-c/pull/101#issuecomment-466809308
I asked also you where the commit is in the MR at https://salsa.debian.org/mariadb-team/mariadb-10.3/merge_requests/15 Could you please research and verify here what version the commit is shipped in? Or maybe research if it broke something and was reverted before release? Thanks for your help! - Otto