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https://issues.apache.org/jira/browse/HIVE-3897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13554908#comment-13554908
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Hudson commented on HIVE-3897:
------------------------------
Integrated in Hive-trunk-h0.21 #1915 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/1915/])
HIVE-3897 Add a way to get the uncompressed/compressed sizes of columns
from an RC File (Kevin Wilfong via namit) (Revision 1433559)
Result = SUCCESS
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1433559
Files :
* /hive/trunk/cli/src/java/org/apache/hadoop/hive/cli/RCFileCat.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/RCFileRecordReader.java
> Add a way to get the uncompressed/compressed sizes of columns from an RC File
> -----------------------------------------------------------------------------
>
> Key: HIVE-3897
> URL: https://issues.apache.org/jira/browse/HIVE-3897
> Project: Hive
> Issue Type: New Feature
> Affects Versions: 0.11.0
> Reporter: Kevin Wilfong
> Assignee: Kevin Wilfong
> Fix For: 0.11.0
>
> Attachments: HIVE-3897.1.patch.txt
>
>
> The uncompressed, compressed size of each column of an RCFile is stored in
> the header of an RCFile block. Currently, we have no convenient way to get
> at this data. This would be useful for identifying where RCFile is doing a
> poor job of compression, so that we can better focus our efforts.
> RCFileCat seems like a logical tool to extend to add this.
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