EnricoMi commented on code in PR #38312:
URL: https://github.com/apache/spark/pull/38312#discussion_r1002966819
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sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaConverter.scala:
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@@ -271,6 +271,10 @@ class ParquetToSparkSchemaConverter(
} else {
TimestampNTZType
}
+ // SPARK-40819: NANOS are not supported as a Timestamp, convert to
LongType without
+ // timezone awareness to address behaviour regression introduced by
SPARK-34661
Review Comment:
Yes, the main purpose of the nano timestamp is the nano precision.
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