morningman commented on a change in pull request #4136:
URL: https://github.com/apache/incubator-doris/pull/4136#discussion_r462211888



##########
File path: be/src/exec/json_scanner.h
##########
@@ -143,10 +140,12 @@ class JsonReader {
     bool _strip_outer_array;
     RuntimeProfile::Counter* _bytes_read_counter;
     RuntimeProfile::Counter* _read_timer;
+
     std::vector<std::vector<JsonPath>> _parsed_jsonpaths;
-    rapidjson::Document _json_doc;
-    //key: column name
-    std::unordered_map<std::string, JsonDataInternal> _jmap;
+    std::vector<JsonPath> _parsed_json_root;
+
+    rapidjson::Document _orinal_json_doc; // orinal json document object from 
parsed json string

Review comment:
       ```suggestion
       rapidjson::Document _origin_json_doc; // orinal json document object 
from parsed json string
   ```

##########
File path: be/src/http/http_common.h
##########
@@ -37,6 +37,7 @@ static const std::string HTTP_STRICT_MODE = "strict_mode";
 static const std::string HTTP_TIMEZONE = "timezone";
 static const std::string HTTP_EXEC_MEM_LIMIT = "exec_mem_limit";
 static const std::string HTTP_EXEC_JSONPATHS  = "jsonpaths";
+static const std::string HTTP_EXEC_JSONROOT  = "json_root";

Review comment:
       ```suggestion
   static const std::string HTTP_JSONROOT  = "json_root";
   ```
   
   EXEC is not some kind of prfix, it is with `EXEC_MEM_LIMIT`.
   Also modify `HTTP_EXEC_JSONPATHS` to `HTTP_JSONPATHS`

##########
File path: 
fe/fe-core/src/main/java/org/apache/doris/load/routineload/RoutineLoadJob.java
##########
@@ -17,6 +17,14 @@
 
 package org.apache.doris.load.routineload;
 
+import com.google.common.base.Joiner;

Review comment:
       Import order




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