zuochunwei commented on a change in pull request #7131:
URL: https://github.com/apache/incubator-doris/pull/7131#discussion_r755842952
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File path: be/src/runtime/fragment_mgr.h
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@@ -58,7 +58,7 @@ class FragmentMgr : public RestMonitorIface {
using FinishCallback = std::function<void(PlanFragmentExecutor*)>;
FragmentMgr(ExecEnv* exec_env);
- virtual ~FragmentMgr();
+ virtual ~FragmentMgr();//why virtual dtor?
Review comment:
just delete the empty implement of virtual ~FragmentMgr，you should
implement dtor if op= and copy ctor are necessary also. otherwise not implement
accord the 3 rules
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