Jackie-Jiang commented on issue #4187: Issue with ingestion data with empty array URL: https://github.com/apache/incubator-pinot/issues/4187#issuecomment-490278882 @jamesyfshao That is a good suggestion, but will also change the existing behavior which might affect other users. One reason we made the change to throw exception instead of silently replace the value is to prevent user got unexpected result (single element array instead of empty array). We already extract most of the commonly used method into RecordReaderUtils, so if you use the provided method to implement your own record reader, it should be quite straight forward. We'll enhance our documentation so that users don't get confused about the behavior.
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