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From "Yuming Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-17240) function ACOS(2) and ASIN(2) should be null
Date Mon, 07 Aug 2017 07:03:17 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yuming Wang updated HIVE-17240:
-------------------------------
    Attachment: HIVE-17240.4.patch

> function ACOS(2) and ASIN(2) should be null
> -------------------------------------------
>
>                 Key: HIVE-17240
>                 URL: https://issues.apache.org/jira/browse/HIVE-17240
>             Project: Hive
>          Issue Type: Bug
>          Components: UDF
>    Affects Versions: 1.1.1, 1.2.2, 2.2.0
>            Reporter: Yuming Wang
>            Assignee: Yuming Wang
>         Attachments: HIVE-17240.1.patch, HIVE-17240.2.patch, HIVE-17240.3.patch, HIVE-17240.4.patch
>
>
> {{acos(2)}} should be null, same as MySQL:
> {code:sql}
> hive> desc function extended acos;
> OK
> acos(x) - returns the arc cosine of x if -1<=x<=1 or NULL otherwise
> Example:
>   > SELECT acos(1) FROM src LIMIT 1;
>   0
>   > SELECT acos(2) FROM src LIMIT 1;
>   NULL
> Time taken: 0.009 seconds, Fetched: 6 row(s)
> hive> select acos(2);
> OK
> NaN
> Time taken: 0.437 seconds, Fetched: 1 row(s)
> {code}
> {code:sql}
> mysql>  select acos(2);
> +---------+
> | acos(2) |
> +---------+
> |    NULL |
> +---------+
> 1 row in set (0.00 sec)
> {code}



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