[GitHub] [doris] levy5307 commented on a diff in pull request #13336: [fix](jsonreader) teach jsonreader to release memory

[GitBox <gi...@apache.org>]

levy5307 commented on code in PR #13336:
URL: https://github.com/apache/doris/pull/13336#discussion_r994225208


##########
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:
   It's better to define a constant for 512*1024



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