[teiid-issues] [JBoss JIRA] (TEIID-3133) Impala Time/Date/Timestamp handling

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-3133.
-----------------------------------
         Assignee: Steven Hawkins
    Fix Version/s: 8.7.1
                   8.9
       Resolution: Done


Restricted the set of conversions to only the types supported by the impala/hive translators to avoid driver and type narrowing issues.

> Impala Time/Date/Timestamp handling
> -----------------------------------
>
>                 Key: TEIID-3133
>                 URL: https://issues.jboss.org/browse/TEIID-3133
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.7.1
>            Reporter: Van Halbert
>            Assignee: Steven Hawkins
>             Fix For: 8.7.1, 8.9
>
>
> Impala supports only TIMESTAMP datatype (see here http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH5/latest/Impala/Installing-and-Using-Impala/ciiu_porting.html) 
> Converted everything into timestamp and now I am trying to get Date and Time parts of the timestamp in Teiid e.g.
> SELECT DISTINCT convert(Source.SmallA.TimeValue, time) as TimeValue FROM Source.SmallA ORDER BY TimeValue
> But I get TranslatorException: Unexpected exception while translating results: Method not supported
> Tried to workaround this but with limited success. For Date it is possible to use to_date function that returns string reprsentation of the date part. For Time I wasn't able to find the solution (have not yet figured out how to use extract function through Teiid).
> http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH5/latest/Impala/Installing-and-Using-Impala/ciiu_datetime_functions.html



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