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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-15634) Hive/Druid integration: Timestamp column inconsistent w/o Fetch optimization
Date Thu, 26 Oct 2017 23:15:01 GMT

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

Jesus Camacho Rodriguez updated HIVE-15634:
-------------------------------------------
    Labels: timestamp  (was: )

> 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
>              Labels: timestamp
>
> {{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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