Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/7580#discussion_r35294675
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
---
@@ -35,3 +36,47 @@ case class Size(child: Expression) extends
UnaryExpression with ExpectsInputType
nullSafeCodeGen(ctx, ev, c => s"${ev.primitive} = ($c).size();")
}
}
+
+case class ArrayContains(left: Expression, right: Expression) extends
BinaryExpression with ExpectsInputTypes {
+ override def dataType: DataType = BooleanType
+
+ override def inputTypes: Seq[AbstractDataType] = Seq(ArrayType,
AnyDataType)
--- End diff --
How about?
```scala
if (!left.dataType.isInstanceOf[ArrayType]) {
TypeCheckResult.TypeCheckFailure(
s"type of first input must be an array, not
${left.dataType.simpleString}")
} else {
TypeCheckResult.TypeCheckSuccess
}
```
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