Colin Ma commented on HIVE-18048:

Hi [~Ferd], I checked the failed test cases, and they are not patch related, no 
vectorization or struct tyep related, eg: TestTriggersNoTezSessionPool, 
TestTablesCreateDropAlterTruncate, TestTablesList.

> Vectorization: Support Struct type with vectorization
> -----------------------------------------------------
>                 Key: HIVE-18048
>                 URL: https://issues.apache.org/jira/browse/HIVE-18048
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Colin Ma
>            Assignee: Colin Ma
>            Priority: Major
>         Attachments: HIVE-18048.001.patch, HIVE-18048.002.patch, 
> HIVE-18048.003.patch, HIVE-18048.004.patch, HIVE-18048.005.patch, 
> HIVE-18048.006.patch, HIVE-18048.007.patch
> Struct type is not supported in MapWork with vectorization, it should be 
> supported to improve the performance.
>  New UDF will be added to access the field of Struct.
> Note:
>  * Nested complex type won't be tested in this ticket.

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