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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4057) LazyHBaseRow may return cache data if the field is null and make the result wrong
Date Sat, 20 Apr 2013 23:19:15 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ashutosh Chauhan updated HIVE-4057:
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.12.0
           Status: Resolved  (was: Patch Available)

HIVE-3179 fixes the issue. Please reopen if you can still reopen the bug.
                
> LazyHBaseRow may return cache data if the field is null and make the result wrong
> ---------------------------------------------------------------------------------
>
>                 Key: HIVE-4057
>                 URL: https://issues.apache.org/jira/browse/HIVE-4057
>             Project: Hive
>          Issue Type: Bug
>          Components: HBase Handler
>    Affects Versions: 0.11.0
>            Reporter: binlijin
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4057.patch
>
>
> LazyHBaseRow
> {code}
> private Object uncheckedGetField(int fieldID) {
>    if(!fieldsInited[fieldID]) {
>       fieldsInited[fieldID] = true;
>           byte [] res = result.getValue(colMap.familyNameBytes, colMap.qualifierNameBytes);
>           if (res == null) {
>             return null;
>           }
>     }
>     return fields[fieldID].getObject();
> }
> {code}
> if there is a LazyHBaseRow instance row,  the fieldID is 0, we assume this field is null,
so the first time row.uncheckedGetField(0) will return null, but the second time when row.uncheckedGetField(0)
will return fields[fieldID].getObject(), this is the last cache data.

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