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Date: Sat, 2 Jul 2016 06:02:10 +0000 (UTC)
From: "Pengcheng Xiong (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HIVE-14143) RawDataSize of RCFile is zero after
 analyze
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archived-at: Sat, 02 Jul 2016 06:02:12 -0000


    [ https://issues.apache.org/jira/browse/HIVE-14143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15360012#comment-15360012 ] 

Pengcheng Xiong commented on HIVE-14143:
----------------------------------------

[~nemon], thanks a lot for your explanation. I think current assumption that "empty column ids means read all columns" is confusing and misleading. I would prefer the following assumption:
{code}
getNeededColumnIDs==null or empty ===means==> do not need any columns
{code}
If you agree, could you please change the code accordingly? Thanks.

> RawDataSize of RCFile is zero after analyze 
> --------------------------------------------
>
>                 Key: HIVE-14143
>                 URL: https://issues.apache.org/jira/browse/HIVE-14143
>             Project: Hive
>          Issue Type: Bug
>          Components: Statistics
>    Affects Versions: 1.2.1, 2.1.0
>            Reporter: Nemon Lou
>            Assignee: Nemon Lou
>            Priority: Minor
>         Attachments: HIVE-14143.patch
>
>
> After running the following analyze command ,rawDataSize becomes zero for rcfile tables.
> {noformat}
>  analyze table RCFILE_TABLE compute statistics ;
> {noformat}


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