Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/2562#discussion_r81857880
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/scala/table/expressionDsl.scala
---
@@ -325,33 +337,42 @@ trait ImplicitExpressionOperations {
*/
def day = toMilliInterval(expr, MILLIS_PER_DAY)
- /**
+ /**
* Creates an interval of the given number of hours.
*
* @return interval of milliseconds
*/
def hour = toMilliInterval(expr, MILLIS_PER_HOUR)
- /**
+ /**
* Creates an interval of the given number of minutes.
*
* @return interval of milliseconds
*/
def minute = toMilliInterval(expr, MILLIS_PER_MINUTE)
- /**
+ /**
* Creates an interval of the given number of seconds.
*
* @return interval of milliseconds
*/
def second = toMilliInterval(expr, MILLIS_PER_SECOND)
- /**
+ /**
* Creates an interval of the given number of milliseconds.
*
* @return interval of milliseconds
*/
def milli = toMilliInterval(expr, 1)
+
+ // row type
+
+ /**
+ * Creates a number defining an amount of rows.
+ *
+ * @return number of rows
+ */
+ def rows = expr
--- End diff --
Doesn't this allow to use `Int.row` wherever `Int` is allowed? Should we
return a `RowInterval` expression?
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