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https://issues.apache.org/jira/browse/HIVE-2600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175777#comment-13175777
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Hudson commented on HIVE-2600:
------------------------------
Integrated in Hive-trunk-h0.23.0 #46 (See
[https://builds.apache.org/job/Hive-trunk-h0.23.0/46/])
HIVE-2600: Enable/Add type-specific compression for rcfile (Krishna Kumar
via He Yongqiang)
heyongqiang :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1223025
Files :
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/SchemaAwareCompressionInputStream.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/SchemaAwareCompressionOutputStream.java
> Enable/Add type-specific compression for rcfile
> -----------------------------------------------
>
> Key: HIVE-2600
> URL: https://issues.apache.org/jira/browse/HIVE-2600
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor, Serializers/Deserializers
> Reporter: Krishna Kumar
> Assignee: Krishna Kumar
> Priority: Minor
> Attachments: HIVE-2600.D1005.1.patch, HIVE-2600.D1005.2.patch,
> HIVE-2600.D1005.3.patch, HIVE-2600.v0.patch, HIVE-2600.v1.patch
>
>
> Enable schema-aware compression codecs which can perform type-specific
> compression on a per-column basis. I see this as in three-parts
> 1. Add interfaces for the rcfile to communicate column information to the
> codec
> 2. Add an "uber compressor" which can perform column-specific compression on
> a per-block basis. Initially, this can be config driven, but we can go for a
> dynamic implementation later.
> 3. A bunch of type-specific compressors
> This jira is for the first part of the effort.
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