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From "Teddy Choi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-5022) Decimal Arithmetic generates NULL value
Date Mon, 19 Aug 2013 06:10:47 GMT

     [ https://issues.apache.org/jira/browse/HIVE-5022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Teddy Choi updated HIVE-5022:
-----------------------------

    Attachment: HIVE-5022.3.patch.txt

I could not reproduce the error on infer_bucket_sort_reducers_power_two.q. It may be a temporal
error caused by parallel tests. I fixed other errors.
                
> Decimal Arithmetic generates NULL value
> ---------------------------------------
>
>                 Key: HIVE-5022
>                 URL: https://issues.apache.org/jira/browse/HIVE-5022
>             Project: Hive
>          Issue Type: Bug
>          Components: Types
>    Affects Versions: 0.11.0
>         Environment: Hortonworks 1.3 running Hive 0.11.0.1.3.0.0-107
>            Reporter: Kevin Soo Hoo
>            Assignee: Teddy Choi
>         Attachments: HIVE-5022.1.patch.txt, HIVE-5022.2.patch.txt, HIVE-5022.3.patch.txt
>
>
> When a decimal division is the first operation, the quotient cannot be multiplied in
a subsequent calculation. Instead, a NULL is returned. 
> The following yield NULL results:
> select (cast (4.53 as decimal) / cast(25.86 as decimal)) * cast(0.087 as decimal) from
<tablename> limit 1;
> select cast (4.53 as decimal) / cast(25.86 as decimal) * cast(0.087 as decimal) from
<tablename> limit 1;
> If we move the multiplication operation to be first, then it will successfully calculate
the result.

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