Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/10964#discussion_r51226510
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala
---
@@ -218,7 +218,7 @@ case class GetArrayItem(child: Expression, ordinal:
Expression)
protected override def nullSafeEval(value: Any, ordinal: Any): Any = {
val baseValue = value.asInstanceOf[ArrayData]
val index = ordinal.asInstanceOf[Number].intValue()
- if (index >= baseValue.numElements() || index < 0) {
+ if (index >= baseValue.numElements() || index < 0 ||
baseValue.isNullAt(index)) {
null
} else {
baseValue.get(index, dataType)
--- End diff --
yea, it's ok, but having it makes the interpreted version and codegen
version more consistent, which is good.
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