zuochunwei commented on a change in pull request #7558:
URL: https://github.com/apache/incubator-doris/pull/7558#discussion_r779322688



##########
File path: be/src/olap/row_cursor.h
##########
@@ -36,10 +36,13 @@ class RowCursor {
 public:
     static const int DEFAULT_TEXT_LENGTH = 128;
 
-    RowCursor();
+    RowCursor() = default;
 
     // 遍历销毁field指针
-    ~RowCursor();
+    ~RowCursor() {
+        delete [] _owned_fixed_buf;
+        delete [] _variable_buf;

Review comment:
       no!
   
   because the type of _variable_buf is char*,  so delete[] _variable_buf will 
just release the memory allocated by corresponding new[]. not matter whatever 
the _variable_buf is used for.




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