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https://issues.apache.org/jira/browse/HIVE-21216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17042174#comment-17042174
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Marta Kuczora commented on HIVE-21216:
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Pushed to master.
Thanks again [~klcopp] for the patch.
> Write Parquet INT64 timestamp
> -----------------------------
>
> Key: HIVE-21216
> URL: https://issues.apache.org/jira/browse/HIVE-21216
> Project: Hive
> Issue Type: New Feature
> Components: Hive
> Reporter: Karen Coppage
> Assignee: Karen Coppage
> Priority: Major
> Labels: breaking_change
> Attachments: HIVE-21216.1.patch, HIVE-21216.2.patch,
> HIVE-21216.3.patch, HIVE-21216.4.patch
>
>
> This patch enables Hive to start writing int64 timestamps in Parquet.
> 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
> The timestamp will have LocalDateTime semantics (not converted to UTC).
> Timestamps outside of range 1677-09-21 00:12:43.145224192 – 2262-04-11
> 23:47:16.854775807 cannot be written in nanos and will be recorded as NULL.
> Time unit (granularity) will be determined by the user. Default is
> milliseconds.
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