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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2014/05/11 00:07:53 UTC

[jira] [Updated] (HIVE-5408) Method matching needs to be improved in NumericOpMethodResolver to suport decimal type with parameters

     [ https://issues.apache.org/jira/browse/HIVE-5408?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Navis updated HIVE-5408:
------------------------

    Fix Version/s:     (was: 0.13.0)
                   0.14.0

> Method matching needs to be improved in NumericOpMethodResolver to suport decimal type with parameters
> ------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-5408
>                 URL: https://issues.apache.org/jira/browse/HIVE-5408
>             Project: Hive
>          Issue Type: Improvement
>          Components: Types
>    Affects Versions: 0.12.0
>            Reporter: Xuefu Zhang
>            Assignee: Xuefu Zhang
>             Fix For: 0.14.0
>
>
> For non-generic UDFs, java reflection is used to determine which evaluate() is to be used for given input expressions. For this, method's argument type is matched against the expression's type. Currently a match exists only if the two types are exactly the same. However, for decimal with precision/and scale, we need to improve the matching, such that a method with decimal arugment should be picked for an input with, say, decimal(5,2). 



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