Github user gengliangwang commented on a diff in the pull request: https://github.com/apache/spark/pull/21380#discussion_r189829268 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/UnivocityParser.scala --- @@ -300,14 +302,11 @@ private[csv] object UnivocityParser { lines } - val filteredLines: Iterator[String] = - CSVUtils.filterCommentAndEmpty(linesWithoutHeader, options) --- End diff -- We need strong evidence/test cases to make sure the current uniVocity filtering works.
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