kiszk commented on a change in pull request #7507:
URL: https://github.com/apache/arrow/pull/7507#discussion_r521499870



##########
File path: cpp/src/arrow/ipc/reader.cc
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@@ -664,14 +690,15 @@ Result<std::shared_ptr<RecordBatch>> ReadRecordBatch(
   std::shared_ptr<Schema> out_schema;
   // Empty means do not use
   std::vector<bool> inclusion_mask;
-  RETURN_NOT_OK(GetInclusionMaskAndOutSchema(schema, options.included_fields,
+  DictionaryKind kind;

Review comment:
       Yes, it is not used, This is a dummy variable to allocate an 
IpcReadContext().




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