Github user ankurdave commented on a diff in the pull request:
https://github.com/apache/spark/pull/5175#discussion_r27092490
--- Diff:
graphx/src/main/scala/org/apache/spark/graphx/impl/VertexPartitionBaseOps.scala
---
@@ -88,6 +88,16 @@ private[graphx] abstract class VertexPartitionBaseOps
this.withMask(newMask)
}
+ /** Hides the VertexId's that are the same between `this` and `other`. */
+ def minus(other: Self[VD]): Self[VD] = {
+ other.withMask((self.mask & other.mask) ^ self.mask)
--- End diff --
This can be simplified to `self.mask.andNot(other.mask)`
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