cloud-fan commented on a change in pull request #34044:
URL: https://github.com/apache/spark/pull/34044#discussion_r711857132
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRowConverter.scala
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@@ -602,8 +602,10 @@ private[parquet] class ParquetRowConverter(
// matches the Catalyst array element type. If it doesn't match, then
it's case 1; otherwise,
// it's case 2.
val guessedElementType = schemaConverter.convertField(repeatedType)
+ // We also need to check if the list element follows the backward
compatible pattern.
Review comment:
shall we also update the long code comment above?
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