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Posted to issues@impala.apache.org by "Thomas Tauber-Marshall (JIRA)" <ji...@apache.org> on 2017/10/02 16:54:00 UTC

[jira] [Resolved] (IMPALA-6003) Trunc() incorrect results with large decimal

     [ https://issues.apache.org/jira/browse/IMPALA-6003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Tauber-Marshall resolved IMPALA-6003.
--------------------------------------------
    Resolution: Not A Problem

> Trunc() incorrect results with large decimal
> --------------------------------------------
>
>                 Key: IMPALA-6003
>                 URL: https://issues.apache.org/jira/browse/IMPALA-6003
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>    Affects Versions: Impala 2.11.0
>            Reporter: Thomas Tauber-Marshall
>            Priority: Critical
>
> The trunc/dtrunc/truncate(double) built in returns incorrect results with large decimals:
> {noformat}
> select trunc(cast(55.9999999999999999 as double))
> +--------------------------------------------+
> | trunc(cast(55.9999999999999999 as double)) |
> +--------------------------------------------+
> | 56                                         | <- note: should be 55
> +--------------------------------------------+
> {noformat}



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