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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5570) Handle virtual columns and schema evolution in vector code path
Date Fri, 27 Jun 2014 00:30:26 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14045381#comment-14045381
] 

Matt McCline commented on HIVE-5570:
------------------------------------


Virtual columns in the Partition (i.e. Map operator) for PTF:
  BLOCKOFFSET ("BLOCK__OFFSET__INSIDE__FILE")
  FILENAME  ("INPUT__FILE__NAME")

First PTF query from ptf.q is:
select 
  p_mfgr, 
  p_name, 
  p_size,
  rank() 
    over (partition by p_mfgr order by p_name) as r,
  dense_rank() 
    over (partition by p_mfgr order by p_name) as dr,
  sum(p_retailprice) 
    over (partition by p_mfgr order by p_name rows between unbounded preceding and current
row) as s1
from noop(on partorc 
  partition by p_mfgr
  order by p_name
  );


> Handle virtual columns and schema evolution in vector code path
> ---------------------------------------------------------------
>
>                 Key: HIVE-5570
>                 URL: https://issues.apache.org/jira/browse/HIVE-5570
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Jitendra Nath Pandey
>            Assignee: Matt McCline
>




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