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From "Zoltan Haindrich (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15161) migrate ColumnStats to use jackson
Date Wed, 09 Nov 2016 20:11:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15651926#comment-15651926
] 

Zoltan Haindrich commented on HIVE-15161:
-----------------------------------------

[~pxiong] can you please take a look at these changes?

and one more thing: there are a few cases when there "column_stats" is present; but "basic_stats"
is false - and hence omitted...they seem to be a bit odd - should I look after these ?
{code}
autoColumnStats_4.q.out:     COLUMN_STATS_ACCURATE   {\"COLUMN_STATS\":{\"a\":\"true\",\"b\":\"true\"}}
{code}

> migrate ColumnStats to use jackson
> ----------------------------------
>
>                 Key: HIVE-15161
>                 URL: https://issues.apache.org/jira/browse/HIVE-15161
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>             Fix For: 2.2.0
>
>         Attachments: HIVE-15161.1.patch, HIVE-15161.2.patch, HIVE-15161.3.patch, HIVE-15161.4.patch
>
>
> * json.org has license issues
> * jackson can provide a fully compatible alternative to it
> * there are a few flakiness issues caused by the order of the map entries of the columns...this
cat be addressed, org.json api was unfriendly in this manner ;)



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