Matt McCline updated HIVE-19116:
    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

> Vectorization: Vector Map data type doesn't keep the order of the key/values 
> pairs as read
> ------------------------------------------------------------------------------------------
>                 Key: HIVE-19116
>                 URL: https://issues.apache.org/jira/browse/HIVE-19116
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 3.0.0
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>             Fix For: 3.0.0
>         Attachments: HIVE-19116.01.patch, HIVE-19116.02.patch
> The VectorExtractRow class does not preserve the order of the key/value pairs 
> when going from MapColumnVector to a Map object.  This causes Q file 
> differences in tests with the MAP data type making it seem like we are 
> getting Wrong Results (well, actually we are).
> When LazyMap class (for example) adds key/value pairs to its "map" it uses a 
> LinkedHashSet to preserve insert order.
> FYI: [~teddy.choi]

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