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From "BELUGA BEHR (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21240) JSON SerDe Re-Write
Date Tue, 26 Feb 2019 22:10:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

BELUGA BEHR updated HIVE-21240:
-------------------------------
    Status: Patch Available  (was: Open)

> JSON SerDe Re-Write
> -------------------
>
>                 Key: HIVE-21240
>                 URL: https://issues.apache.org/jira/browse/HIVE-21240
>             Project: Hive
>          Issue Type: Improvement
>          Components: Serializers/Deserializers
>    Affects Versions: 3.1.1, 4.0.0
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21240.1.patch, HIVE-21240.1.patch, HIVE-21240.10.patch, HIVE-21240.11.patch,
HIVE-21240.11.patch, HIVE-21240.11.patch, HIVE-21240.11.patch, HIVE-21240.2.patch, HIVE-21240.3.patch,
HIVE-21240.4.patch, HIVE-21240.5.patch, HIVE-21240.6.patch, HIVE-21240.7.patch, HIVE-21240.9.patch,
HIVE-24240.8.patch, kafka_storage_handler.diff
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The JSON SerDe has a few issues, I will link them to this JIRA.
> * Use Jackson Tree parser instead of manually parsing
> * Added support for base-64 encoded data (the expected format when using JSON)
> * Added support to skip blank lines (returns all columns as null values)
> * Current JSON parser accepts, but does not apply, custom timestamp formats in most cases
> * Added some unit tests
> * Added cache for column-name to column-index searches, currently O\(n\) for each row
processed, for each column in the row



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