SQL> alter system set "_optimizer_mjc_enabled" = false;
SQL> alter session set "_optimizer_mjc_enabled" = false;
select/*+ OPT_PARAM('_optimizer_mjc_enabled','false') */
os: centos 7.4 db: oracle 11.2.0.4 版本 # cat /etc/centos-release CentOS Linux release 7.4.1708 (Core) # # su - ora