Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/7291#discussion_r34220549
--- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala ---
@@ -363,6 +364,70 @@ trait Row extends Serializable {
false
}
+ protected def canEqual(other: Any) =
+ other.isInstanceOf[Row] && !other.isInstanceOf[InternalRow]
--- End diff --
And it can be `null` in a deep compare, e.g. for the complex data type.
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