stevomitric commented on code in PR #56407:
URL: https://github.com/apache/spark/pull/56407#discussion_r3421503701
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaConverter.scala:
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@@ -735,6 +746,15 @@ class SparkToParquetSchemaConverter(
case TimestampNTZType =>
Types.primitive(INT64, repetition)
.as(LogicalTypeAnnotation.timestampType(false,
TimeUnit.MICROS)).named(field.name)
+
+ case _: TimestampLTZNanosType =>
+ Types.primitive(INT64, repetition)
+ .as(LogicalTypeAnnotation.timestampType(true,
TimeUnit.NANOS)).named(field.name)
+
+ case _: TimestampNTZNanosType =>
+ Types.primitive(INT64, repetition)
+ .as(LogicalTypeAnnotation.timestampType(false,
TimeUnit.NANOS)).named(field.name)
Review Comment:
they differ in isAdjustedToUTC: LTZ writes timestampType(true, NANOS) and
NTZ writes timestampType(false, NANOS)
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