Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/22880#discussion_r229530592 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRowConverter.scala --- @@ -202,11 +204,15 @@ private[parquet] class ParquetRowConverter( override def start(): Unit = { var i = 0 - while (i < currentRow.numFields) { + while (i < fieldConverters.length) { fieldConverters(i).updater.start() currentRow.setNullAt(i) --- End diff -- Yea, I think it should be fine to do `setNullAt` at non-corresponding field, right?
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