David Cashman created SPARK-51270:
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Summary: Support new Variant types UUID, Time, and nanosecond
timestamp
Key: SPARK-51270
URL: https://issues.apache.org/jira/browse/SPARK-51270
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 4.1
Reporter: David Cashman
Four new types were added to the Parquet Variant spec
([https://github.com/apache/parquet-format/commit/25f05e73d8cd7f5c83532ce51cb4f4de8ba5f2a2):]
UUID, Time, Timestamp(NANOS) and TimestampNTZ(NANOS).
Spark does not have corresponding types, but we should add support for basic
Variant operations: extraction, cast to JSON/string, and reporting the type in
SchemaOfVariant.
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