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https://issues.apache.org/jira/browse/SPARK-6223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14352837#comment-14352837
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Vinod KC commented on SPARK-6223:
---------------------------------
I'm working on this
> Avoid Build warning- enable implicit value scala.language.existentials visible
> ------------------------------------------------------------------------------
>
> Key: SPARK-6223
> URL: https://issues.apache.org/jira/browse/SPARK-6223
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.3.0
> Reporter: Vinod KC
> Priority: Trivial
>
> spark/sql/core/src/main/scala/org/apache/spark/sql/sources/ddl.scala:316:
> inferred existential type Option[(Class[_$4],
> org.apache.spark.sql.sources.BaseRelation)] forSome { type _$4 }, which
> cannot be expressed by wildcards, should be enabled by making the implicit
> value scala.language.existentials visible.
> This can be achieved by adding the import clause 'import
> scala.language.existentials'
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