Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/18640#discussion_r133134410
--- Diff: pom.xml ---
@@ -1678,6 +1681,44 @@
</exclusions>
</dependency>
<dependency>
+ <groupId>org.apache.orc</groupId>
+ <artifactId>orc-core</artifactId>
+ <version>${orc.version}</version>
+ <classifier>${orc.classifier}</classifier>
+ <scope>${orc.deps.scope}</scope>
+ <exclusions>
+ <exclusion>
+ <groupId>org.apache.hadoop</groupId>
+ <artifactId>hadoop-common</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.hive</groupId>
+ <artifactId>hive-storage-api</artifactId>
--- End diff --
Thank you so much for review, @cloud-fan .
- The original `orc-core-1.4.0.jar` has `hive-storage-api` dependency.
([Maven Repo](https://mvnrepository.com/artifact/org.apache.orc/orc-core/1.4.))
- `orc-core-1.4.0-nohive.jar` is a shaded jar file including
`hive-storage-api` under `org.apache.orc` namespace.
`orc-core-1.4.0-nohive.jar` is designed for users and apps who don't want
to depend on (or consider) `hive`. `nohive` is a classifier for this purpose.
This PR uses `orc-core-1.4.0-nohive` only. To avoid Maven confusion, this
exclution makes it sure by removing the `hive-storage-api` dependency
explicitly from `orc-core` artifact.
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