Github user aray commented on a diff in the pull request: https://github.com/apache/spark/pull/18818#discussion_r131808912 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala --- @@ -453,6 +453,14 @@ case class Or(left: Expression, right: Expression) extends BinaryOperator with P abstract class BinaryComparison extends BinaryOperator with Predicate { + override def inputType: AbstractDataType = AnyDataType --- End diff -- Right, but the real type check is below in `checkInputDataTypes`
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