ueshin commented on a change in pull request #29138:
URL: https://github.com/apache/spark/pull/29138#discussion_r456173962
##########
File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
##########
@@ -3406,6 +3406,24 @@ object functions {
Slice(x.expr, Literal(start), Literal(length))
}
+ /**
+ * Returns an array containing all the elements in `x` from index `start`
(or starting from the
+ * end if `start` is negative) with the specified `length`.
+ *
+ * @param x the array column to be sliced
+ * @param start the starting index
+ * @param length the length of the slice
+ *
+ * @group collection_funcs
+ * @since 2.4.0
Review comment:
`3.1.0`?
##########
File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
##########
@@ -3406,6 +3406,24 @@ object functions {
Slice(x.expr, Literal(start), Literal(length))
}
+ /**
+ * Returns an array containing all the elements in `x` from index `start`
(or starting from the
+ * end if `start` is negative) with the specified `length`.
+ *
+ * @param x the array column to be sliced
+ * @param start the starting index
+ * @param length the length of the slice
+ *
+ * @group collection_funcs
+ * @since 2.4.0
+ */
+ def slice(x: Column, start: Any, length: Any): Column = (start, length)
match {
Review comment:
I'm afraid I don't think we should use `Any` here.
Maybe `def slice(x: Column, start: Column, length: Column): Column` is good
enough?
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