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From "Amruth S (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-18325) sending flag to do case unaware schema evolution to reader.
Date Thu, 28 Dec 2017 09:27:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-18325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amruth S updated HIVE-18325:
----------------------------
    Priority: Critical  (was: Major)

> sending flag to do case unaware schema evolution to reader.
> -----------------------------------------------------------
>
>                 Key: HIVE-18325
>                 URL: https://issues.apache.org/jira/browse/HIVE-18325
>             Project: Hive
>          Issue Type: Bug
>          Components: ORC
>            Reporter: piyush mukati
>            Assignee: piyush mukati
>            Priority: Critical
>
> in case of orc data reader schema passed by hive are all small cases and if the column
name stored in the file has any uppercase, it will return null values for those columns even
if the data is present in the file. 
> Column name matching while schema evolution should be case unaware. 
> we need to pass config for same from hive. the config(orc.schema.evolution.case.sensitive)
in orc will be exposed by https://issues.apache.org/jira/browse/ORC-264 
>  



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