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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16751) Support different types for grouping columns in GroupBy Druid queries
Date Tue, 11 Jul 2017 21:29:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16083022#comment-16083022
] 

Lefty Leverenz commented on HIVE-16751:
---------------------------------------

Okay, thanks Jesús.

> Support different types for grouping columns in GroupBy Druid queries
> ---------------------------------------------------------------------
>
>                 Key: HIVE-16751
>                 URL: https://issues.apache.org/jira/browse/HIVE-16751
>             Project: Hive
>          Issue Type: Bug
>          Components: Druid integration
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16751.patch
>
>
> Calcite 1.13 pushes EXTRACT and FLOOR function to Druid as an extraction function (cf
CALCITE-1758). Originally, we were assuming that all group by columns in a druid query were
of STRING type; however, this will not true anymore (result of EXTRACT is an INT and result
of FLOOR a TIMESTAMP).
> When we upgrade to Calcite 1.13, we will need to extend the DruidSerDe to handle these
functions.



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