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From "Jinfeng Ni (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-3761) CastIntDecimal implementation should not update the input holder.
Date Tue, 15 Sep 2015 18:05:45 GMT

     [ https://issues.apache.org/jira/browse/DRILL-3761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jinfeng Ni updated DRILL-3761:
------------------------------
    Attachment: 0001-DRILL-3761-Modify-CastIntDecimal-implementation-so-t.patch

> CastIntDecimal implementation should not update the input holder. 
> ------------------------------------------------------------------
>
>                 Key: DRILL-3761
>                 URL: https://issues.apache.org/jira/browse/DRILL-3761
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Functions - Drill
>            Reporter: Jinfeng Ni
>            Assignee: Jinfeng Ni
>         Attachments: 0001-DRILL-3761-Modify-CastIntDecimal-implementation-so-t.patch
>
>
> CastIntDecimal implementation would update the input holder's value, which may cause
some side effect. This is especially true, when the run-time generated code tries to re-use
the holder for common expressions. 
> In general, Drill's build-in/UDF implementation had better not modify the input holder.



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