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From "Edward Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (KYLIN-1345) measure type expansion when dealing sum of decimal metric
Date Thu, 28 Jan 2016 08:31:39 GMT

     [ https://issues.apache.org/jira/browse/KYLIN-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Edward Zhang reassigned KYLIN-1345:
-----------------------------------

    Assignee: Edward Zhang  (was: hongbin ma)

> measure type expansion when dealing sum of decimal metric
> ---------------------------------------------------------
>
>                 Key: KYLIN-1345
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1345
>             Project: Kylin
>          Issue Type: Improvement
>            Reporter: hongbin ma
>            Assignee: Edward Zhang
>              Labels: newbie
>
> suppose a metric column price is of type decimal (6,2), the sum aggregator of it might
exceed the maximal of decimal (6,2). Currently for metric aggregators we inherite the column's
type in hive. We should think auto expanding decimal type to decimal(18,4) (just an example)
for such cases



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