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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2018/07/18 06:53:00 UTC
[jira] [Resolved] (SPARK-24576) Upgrade Apache ORC to 1.5.2
[ https://issues.apache.org/jira/browse/SPARK-24576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiao Li resolved SPARK-24576.
-----------------------------
Resolution: Fixed
Assignee: Dongjoon Hyun
Fix Version/s: 2.4.0
> Upgrade Apache ORC to 1.5.2
> ----------------------------
>
> Key: SPARK-24576
> URL: https://issues.apache.org/jira/browse/SPARK-24576
> Project: Spark
> Issue Type: Improvement
> Components: Build
> Affects Versions: 2.4.0
> Reporter: Dongjoon Hyun
> Assignee: Dongjoon Hyun
> Priority: Major
> Fix For: 2.4.0
>
>
> This issue aims to upgrade Apache ORC library from 1.4.4 to 1.5.1 in order to bring the following benefits into Apache Spark.
> * ORC-91 Support for variable length blocks in HDFS (The current space wasted in ORC to padding is known to be 5%.)
> * ORC-344 Support for using Decimal64ColumnVector
> In addition to that, Apache Hive 3.1.0 and 3.2.0 will use ORC 1.5.1 (HIVE-19669) and 1.5.2 (HIVE-19792) respectively. This will improve the compatibility between Apache Spark and Apache Hive.
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