[GitHub] [druid] jasonk000 commented on a change in pull request #12177: introduce a "tree" type to the flattenSpec

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

jasonk000 commented on a change in pull request #12177:
URL: https://github.com/apache/druid/pull/12177#discussion_r789026969



##########
File path: core/src/main/java/org/apache/druid/java/util/common/parsers/JSONFlattenerMaker.java
##########
@@ -108,6 +108,22 @@ public Object getRootField(final JsonNode obj, final String key)
     }
   }
 
+  @Override
+  public Function<JsonNode, Object> makeJsonTreeExtractor(final List<String> exprs)
+  {
+    String[] exprsArray = exprs.toArray(new String[0]);

Review comment:
       This is a defensive copy.




-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscribe@druid.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org



---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@druid.apache.org
For additional commands, e-mail: commits-help@druid.apache.org