Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/21320#discussion_r212414888 --- 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) i += 1 } + while (i < currentRow.numFields) { --- End diff -- My suggestion is to remove the changes from this file at first. We can handle the ignored cases in the follow-up PRs.
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