Karen Coppage created HIVE-21215:
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Summary: Read Parquet INT64 timestamp
Key: HIVE-21215
URL: https://issues.apache.org/jira/browse/HIVE-21215
Project: Hive
Issue Type: New Feature
Reporter: Karen Coppage
Assignee: Marta Kuczora
[WIP]
This patch enables Hive to start reading timestamps from Parquet written with
the new semantics:
With Parquet version 1.11, a new timestamp LogicalType with base INT64 and the
following metadata is introduced:
* boolean isAdjustedToUtc: marks whether the timestamp is converted to UTC (aka
Instant semantics) or not (LocalDateTime semantics).
* enum TimeUnit (NANOS, MICROS, MILLIS): granularity of timestamp
Upon reading, the semantics of these new timestamps will be determined by their
metadata, while the semantics of INT96 timestamps will continue to be deduced
from the writer metadata.
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