1.1.7 can not use in mariadb 10.3

[RankRao]

gh-ost --version
1.1.7 (git commit: d5ab048)

mysql --version
mysql Ver 15.1 Distrib 10.3.31-MariaDB, for Linux (x86_64) using readline 5.1

2025-01-03 02:18:57 FATAL Error 1193 (HY000): Unknown system variable 'transaction_isolation'

in mariadb，not have variable 'transaction_isolation'，but have variable 'tx_isolation'

MariaDB [(none)]> show variables like '%isolation%';
+---------------+-----------------+
| Variable_name | Value |
+---------------+-----------------+
| tx_isolation | REPEATABLE-READ |
+---------------+-----------------+

[meiji163]

Thanks for the bug report, we don't currently have tests for MariaDB.
transaction_isolation was added in #1156. The fix would have to add a flag to specify MariaDB and change the connection parameter name to tx_isolation