cloud-fan commented on a change in pull request #30297:
URL: https://github.com/apache/spark/pull/30297#discussion_r520544656
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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@@ -1906,8 +1906,8 @@ case class ArrayPosition(left: Expression, right:
Expression)
@ExpressionDescription(
usage = """
_FUNC_(array, index) - Returns element of array at given (1-based) index.
If index < 0,
- accesses elements from the last to the first. Returns NULL if the index
exceeds the length
- of the array.
+ accesses elements from the last to the first. If the index exceeds the
length of the array,
+ Returns NULL if Ansi mode is off; Throws ArrayIndexOutOfBoundsException
when Ansi mode is on.
Review comment:
`Ansi` -> `ANSI`
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