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https://issues.apache.org/jira/browse/SPARK-18466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun closed SPARK-18466.
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> Missing withFilter method causes warnings when using for comprehensions
> -----------------------------------------------------------------------
>
> Key: SPARK-18466
> URL: https://issues.apache.org/jira/browse/SPARK-18466
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 1.4.0, 1.4.1, 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1, 1.6.2,
> 1.6.3, 2.0.0, 2.0.1, 2.0.2, 2.3.0, 2.4.0
> Reporter: Richard W. Eggert II
> Priority: Minor
> Labels: easyfix
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> The fact that the RDD class has a {{filter}} method but not a {{withFilter}}
> method results in compiler warnings when using RDDs in {{for}}
> comprehensions. As of Scala 2.12, falling back to use of {{filter}} is no
> longer supported, so {{for}} comprehensions that use filters will no longer
> compile. Semantically, the only difference between {{withFilter}} and
> {{filter}} is that {{withFilter}} is lazy, and since RDDs are lazy by nature,
> one can simply be aliased to the other.
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