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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-15634) Hive/Druid integration: Timestamp column inconsistent w/o Fetch optimization
Date Sat, 25 Mar 2017 20:11:41 GMT

     [ https://issues.apache.org/jira/browse/HIVE-15634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pengcheng Xiong updated HIVE-15634:
-----------------------------------
    Target Version/s: 3.0.0  (was: 2.3.0)

> Hive/Druid integration: Timestamp column inconsistent w/o Fetch optimization
> ----------------------------------------------------------------------------
>
>                 Key: HIVE-15634
>                 URL: https://issues.apache.org/jira/browse/HIVE-15634
>             Project: Hive
>          Issue Type: Bug
>          Components: Druid integration
>    Affects Versions: 2.2.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: slim bouguerra
>            Priority: Critical
>
> {{SET hive.tez.java.opts=-Duser.timezone="UTC";}} can be used to change timezone for
Tez tasks. However, when Fetch optimizer kicks in because we can push the full query to Druid,
we obtain different values for the timestamp than when jobs are executed. This probably has
to do with the timezone on the client side. How should we handle this issue?
> For instance, this can be observed with the following query:
> {code:sql}
> set hive.fetch.task.conversion=more;
> SELECT DISTINCT `__time`
> FROM store_sales_sold_time_subset
> WHERE `__time` < '1999-11-10 00:00:00';
> OK
> 1999-10-31 19:00:00
> 1999-11-01 19:00:00
> 1999-11-02 19:00:00
> 1999-11-03 19:00:00
> 1999-11-04 19:00:00
> 1999-11-05 19:00:00
> 1999-11-06 19:00:00
> 1999-11-07 19:00:00
> 1999-11-08 19:00:00
> set hive.fetch.task.conversion=none;
> SELECT DISTINCT `__time`
> FROM store_sales_sold_time_subset
> WHERE `__time` < '1999-11-10 00:00:00';
> OK
> 1999-11-01 00:00:00
> 1999-11-02 00:00:00
> 1999-11-03 00:00:00
> 1999-11-04 00:00:00
> 1999-11-05 00:00:00
> 1999-11-06 00:00:00
> 1999-11-07 00:00:00
> 1999-11-08 00:00:00
> 1999-11-09 00:00:00
> {code}



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