Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/7291#discussion_r34162585
--- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala ---
@@ -363,6 +363,69 @@ trait Row extends Serializable {
false
}
+ protected def canEqual(other: Any) = other.isInstanceOf[Row]
--- End diff --
`other` could be `null`. And `=(other.getClass == this.getClass)`, so we
don't need to override it within its subclasses.
BTW: Should we mark it identical for a GenericRow and a MutableRow if they
contains exactly the same elements?
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