[GitHub] [calcite] danny0405 commented on a change in pull request #1313: [CALCITE-3190] ElasticsearchJson throws Exception when visitMappingProperties

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danny0405 commented on a change in pull request #1313: [CALCITE-3190] ElasticsearchJson throws Exception when visitMappingProperties
URL: https://github.com/apache/calcite/pull/1313#discussion_r302505556
 
 

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 File path: elasticsearch/src/main/java/org/apache/calcite/adapter/elasticsearch/ElasticsearchJson.java
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 @@ -97,42 +95,33 @@ static void visitMappingProperties(ObjectNode mapping,
       BiConsumer<String, String> consumer) {
     Objects.requireNonNull(mapping, "mapping");
     Objects.requireNonNull(consumer, "consumer");
-    visitMappingProperties(new ArrayDeque<>(), mapping, consumer);
+    visitMappingProperties("", mapping, consumer);
   }
 
-  private static void visitMappingProperties(Deque<String> path,
-      ObjectNode mapping, BiConsumer<String, String> consumer) {
+  private static void visitMappingProperties(String prefix, ObjectNode mapping,
+                                             BiConsumer<String, String> consumer) {
     Objects.requireNonNull(mapping, "mapping");
 
 Review comment:
   Please fix all these indents.

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