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From "zhangxj (Jira)" <j...@apache.org>
Subject [jira] [Comment Edited] (HIVE-21215) Read Parquet INT64 timestamp
Date Fri, 03 Jan 2020 04:49:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17007225#comment-17007225
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zhangxj edited comment on HIVE-21215 at 1/3/20 4:48 AM:
--------------------------------------------------------

Is this issue solved ? thanks ! [~klcopp] [~kuczoram]


was (Author: zhxjdwh):
Is this issue solved ? thanks ! [~klcopp]

> 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
>            Priority: Major
>
> [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.
> This feature will be behind a flag for now.



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