绑定变量窥探、自适应游标、基数反馈

参数关闭

q‘[OPT_PARAM(‘_optim_peek_user_binds‘ ‘false‘)]‘,
q‘[OPT_PARAM(‘_optimizer_adaptive_cursor_sharing‘ ‘false‘)]‘,
q‘[OPT_PARAM(‘_optimizer_use_feedback‘ ‘false‘)]‘,