Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/4308#discussion_r23988104
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala
---
@@ -175,7 +175,10 @@ case class EqualTo(left: Expression, right:
Expression) extends BinaryComparison
null
} else {
val r = right.eval(input)
- if (r == null) null else l == r
+ if (r == null) null
+ else if (left.dataType != BinaryType) l == r
+ else BinaryType.ordering.compare(
+ l.asInstanceOf[Array[Byte]], r.asInstanceOf[Array[Byte]]) == 0
--- End diff --
Filed SPARK-5553 to track this. I'd like to make sure equality comparison
for binary types works properly in this PR. Also, we're already using
`Ordering` to compare binary values in `LessThan` and `GreaterThan` etc., so at
least this isn't a regression.
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