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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Work logged] (HIVE-21240) JSON SerDe Deserialize Re-Write
Date Mon, 11 Feb 2019 16:15:00 GMT


ASF GitHub Bot logged work on HIVE-21240:

                Author: ASF GitHub Bot
            Created on: 11/Feb/19 16:14
            Start Date: 11/Feb/19 16:14
    Worklog Time Spent: 10m 
      Work Description: BELUGABEHR commented on pull request #530: HIVE-21240: JSON SerDe
Deserialize Re-Write
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Issue Time Tracking

            Worklog Id:     (was: 197011)
            Time Spent: 10m
    Remaining Estimate: 0h

> JSON SerDe Deserialize Re-Write
> -------------------------------
>                 Key: HIVE-21240
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Serializers/Deserializers
>    Affects Versions: 4.0.0, 3.1.1
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>          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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