Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/7291#discussion_r34256802
--- 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 --
Previously we implemented equals in both internal row(`InternalRow`) and
external row(`GenericRow`) with very similar logic, so I moved it to the root
class `Row`, but using `canEqual` to prevent compare internal row and external
row. (`InternalRow` override `canEqual`)
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