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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-14542) VirtualColumn::equals() should use object equality
Date Fri, 09 Sep 2016 00:47:23 GMT

     [ https://issues.apache.org/jira/browse/HIVE-14542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eugene Koifman updated HIVE-14542:
----------------------------------
       Resolution: Fixed
    Fix Version/s: 2.2.0
           Status: Resolved  (was: Patch Available)

> VirtualColumn::equals() should use object equality
> --------------------------------------------------
>
>                 Key: HIVE-14542
>                 URL: https://issues.apache.org/jira/browse/HIVE-14542
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor, Transactions
>    Affects Versions: 0.14.0
>            Reporter: Gopal V
>            Assignee: Eugene Koifman
>            Priority: Minor
>             Fix For: 2.2.0
>
>         Attachments: HIVE-14542.3.patch, HIVE-14542.4.patch, HIVE-14542.5.patch, HIVE-14542.6.patch,
HIVE-14542.patch, virtual-columns.png
>
>
> The VirtualColumn() constructor is private and is only called to initialize 5 static
objects.
> !virtual-columns.png!
> There's no reason for VirtualColumn::equals() to do a deep type inspection for each access
of a complex type like ROW__ID.
> {code}
>   else if(vc.equals(VirtualColumn.ROWID)) {
>         if(ctx.getIoCxt().getRecordIdentifier() == null) {
>           vcValues[i] = null;
>         }
> {code}



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