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https://issues.apache.org/jira/browse/HIVE-5276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13768001#comment-13768001
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Phabricator commented on HIVE-5276:
-----------------------------------

cwsteinbach has commented on the revision "HIVE-5276 [jira] Skip useless string 
encoding stage for hiveserver2".

INLINE COMMENTS
  ql/src/java/org/apache/hadoop/hive/ql/exec/ListSinkOperator.java:57 Let's get 
rid of this comment and anything special we're doing for Hadoop 0.17. We 
deprecated support for that version a long time ago.
  service/src/java/org/apache/hive/service/cli/operation/SQLOperation.java:98 I 
admit that I haven't investigated this closely, but the fact that we're 
overriding a user-configurable property with a hardcoded value seems like a red 
flag. If this is genuinely necessary can you please add a comment explaining 
the rationale? Thanks.
  ql/src/java/org/apache/hadoop/hive/ql/exec/DefaultFetchConverter.java:50 We 
deprecated support for 0.17 and 0.18 a long time ago. Please remove.
  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java:667 Please add this 
to conf/hive-default.xml.template along with a template explaining what it 
does. Also, is this something that we really want to expose to users at this 
point in time?

REVISION DETAIL
  https://reviews.facebook.net/D12879

To: JIRA, navis
Cc: cwsteinbach

                
> Skip useless string encoding stage for hiveserver2
> --------------------------------------------------
>
>                 Key: HIVE-5276
>                 URL: https://issues.apache.org/jira/browse/HIVE-5276
>             Project: Hive
>          Issue Type: Improvement
>          Components: HiveServer2
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>         Attachments: HIVE-5276.D12879.1.patch
>
>
> Current hiveserver2 acquires rows in string format which is used for cli 
> output. Then convert them into row again and convert to final format lastly. 
> This is inefficient and memory consuming. 

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