Github user attilapiros commented on a diff in the pull request:
https://github.com/apache/spark/pull/22880#discussion_r229732302
--- 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 --
I am also lost here. The `i` index seems to me following the parquet fields
so is not the `updater.ordinal` the the correct index to update the currentRow?
I would expect something like:
`scala
val updater = fieldConverters(i).updater
updater.start()
currentRow.setNull(updater.ordinal)
`
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