Github user mgaido91 commented on a diff in the pull request: https://github.com/apache/spark/pull/20637#discussion_r206841463 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/GenerateUnsafeProjection.scala --- @@ -142,7 +143,7 @@ object GenerateUnsafeProjection extends CodeGenerator[Seq[Expression], UnsafePro case _ => s"$rowWriter.write($index, ${input.value});" } - if (input.isNull == "false") { + if (input.isNull == "false" || !nullable) { --- End diff -- aren't those checks equivalent?
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