Hive and ORDER BY on Sandbox

This topic contains 0 replies, has 1 voice, and was last updated by  Mark Robinson 1 year, 6 months ago.

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  • #31095

    I would very much appreciate some help as to what is the problem with the HQL I am using in Hive in the Sandbox.

    The following two queries work and return the correct results:

    select taccode, count(*)
    from tac_code
    group by taccode
    order by taccode;

    select substring(taccode, 1, 4), count(*)
    from tac_code
    group by substring(taccode, 1, 4);

    The following two queries do not work, with error: Error occurred executing hive query: Unknown exception.

    select substring(taccode, 1, 4), count(*)
    from tac_code
    group by taccode
    order by taccode;

    select substring(taccode, 1, 4), count(*)
    from tac_code
    group by substring(taccode, 1, 4)
    order by taccode;

    select substring(taccode, 1, 4), count(*)
    from tac_code
    group by substring(taccode, 1, 4)
    order by substring(taccode, 1, 4);

    As you can see there is not much difference between the queries but I can only assume that the substring and order by combined is related to the problem.

    Can anybody please help with this? Thank you!

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