MaxGekk commented on a change in pull request #35607:
URL: https://github.com/apache/spark/pull/35607#discussion_r813579311
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
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@@ -3141,3 +3141,88 @@ case class TimestampAdd(
copy(unit = newFirst, quantity = newSecond, timestamp = newThird)
}
}
+
+// scalastyle:off line.size.limit
+@ExpressionDescription(
+ usage = "_FUNC_(unit, startTimestamp, endTimestamp) - Gets the difference
between the timestamps `endTimestamp` and `startTimestamp` in the specified
units.",
+ arguments = """
+ Arguments:
+ * unit - this indicates the units of the difference between the given
timestamps.
Review comment:
The behavior has been described in PR's description already:
"... The function calculates the amount in terms of this unit, and returns a
**whole** number, representing the number of **complete units between the two
timestamps**. "
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