dataroaring commented on code in PR #13336:
URL: https://github.com/apache/doris/pull/13336#discussion_r995310018


##########
be/src/exec/json_scanner.h:
##########
@@ -178,7 +178,15 @@ class JsonReader {
     std::vector<std::vector<JsonPath>> _parsed_jsonpaths;
     std::vector<JsonPath> _parsed_json_root;
 
-    rapidjson::Document _origin_json_doc; // origin json document object from 
parsed json string
+    char _value_buffer[4 * 1024 * 1024];
+    char _parse_buffer[512 * 1024];

Review Comment:
   So, if we define a varible named kParserBufferSize, can you get some 
meaning? I think it can be got from _parse_buffer?



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