LuciferYang commented on a change in pull request #30924:
URL: https://github.com/apache/spark/pull/30924#discussion_r549228644
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File path:
core/src/main/scala/org/apache/spark/rdd/SequenceFileRDDFunctions.scala
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@@ -32,16 +32,13 @@ import org.apache.spark.internal.Logging
* @note This can't be part of PairRDDFunctions because we need more implicit
parameters to
* convert our keys and values to Writable.
*/
-class SequenceFileRDDFunctions[K <% Writable: ClassTag, V <% Writable :
ClassTag](
+class SequenceFileRDDFunctions[K: IsWritable: ClassTag, V: IsWritable:
ClassTag](
Review comment:
And I think we could combine the type declaration with the
`SequenceFileRDDFunctions ` definition, but it seems that Spark tells us
`avoid using structural types.`
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