I'm working on Java app that uses Spark 2.3.1 to generate xml files from Dataset. The following code doesn't create header in the XML file: dataset . write(). format( "xml" ). option( "encoding" , "UTF-8" ). option( "header" , "true" ). ... I can't find what key in DataFrameWriter.option (if any) creates XML file header. I tried option( "header" , "true" ), that creates header for CSV files but it doesn't work. So any suggestions please or even better- reference to documented list of all keys available in option for XML files.
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