pvary commented on issue #11937:
URL: https://github.com/apache/iceberg/issues/11937#issuecomment-2582246631
@dfercode: In the Iceberg code the nano timestamp is specified, but not
implemented yet.
I have tried to add it to some Spark tests, and got this:
```
Unsupported type for Parquet: timestamp_ns
java.lang.UnsupportedOperationException: Unsupported type for Parquet:
timestamp_ns
at
org.apache.iceberg.parquet.TypeToMessageType.primitive(TypeToMessageType.java:191)
at
org.apache.iceberg.parquet.TypeToMessageType.field(TypeToMessageType.java:87)
at
org.apache.iceberg.parquet.TypeToMessageType.map(TypeToMessageType.java:115)
at
org.apache.iceberg.parquet.TypeToMessageType.field(TypeToMessageType.java:94)
at
org.apache.iceberg.parquet.TypeToMessageType.convert(TypeToMessageType.java:64)
at
org.apache.iceberg.parquet.ParquetSchemaUtil.convert(ParquetSchemaUtil.java:41)
at
org.apache.iceberg.parquet.Parquet$WriteBuilder.build(Parquet.java:311)
at
org.apache.iceberg.spark.data.TestParquetAvroWriter.testCorrectness(TestParquetAvroWriter.java:100)
[..]
```
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