beliefer commented on code in PR #38867:
URL: https://github.com/apache/spark/pull/38867#discussion_r1063236793
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala:
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@@ -4601,6 +4601,231 @@ case class ArrayExcept(left: Expression, right:
Expression) extends ArrayBinaryL
newLeft: Expression, newRight: Expression): ArrayExcept = copy(left =
newLeft, right = newRight)
}
+@ExpressionDescription(
+ usage = "_FUNC_(x, pos, val) - Places val into index pos of array x (array
indices start at 1)",
+ examples = """
+ Examples:
+ > SELECT _FUNC_(array(1, 2, 3, 4), 5, 5);
+ [1,2,3,4,5]
Review Comment:
@Daniel-Davies I'm sorry. I said wrong. It seems the array functions
supported by Spark starts at 1. So there are two ways:
1. All the new array functions still starts at 1.
2. Another way, the legacy functions starts at 1 is a mistake indeed. For
follow snowflake, we have to break change.
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