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Posted to dev@parquet.apache.org by "Lars Volker (JIRA)" <ji...@apache.org> on 2018/03/13 00:35:00 UTC
[jira] [Assigned] (PARQUET-323) INT96 should be marked as
deprecated
[ https://issues.apache.org/jira/browse/PARQUET-323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lars Volker reassigned PARQUET-323:
-----------------------------------
Assignee: Lars Volker
> INT96 should be marked as deprecated
> ------------------------------------
>
> Key: PARQUET-323
> URL: https://issues.apache.org/jira/browse/PARQUET-323
> Project: Parquet
> Issue Type: Bug
> Components: parquet-format
> Reporter: Cheng Lian
> Assignee: Lars Volker
> Priority: Major
>
> As discussed in the mailing list, {{INT96}} is only used to represent nanosec timestamp in Impala for some historical reasons, and should be deprecated. Since nanosec precision is rarely a real requirement, one possible and simple solution would be replacing {{INT96}} with {{INT64 (TIMESTAMP_MILLIS)}} or {{INT64 (TIMESTAMP_MICROS)}}.
> Several projects (Impala, Hive, Spark, ...) support INT96.
> We need a clear spec of the replacement and the path to deprecation.
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