Github user huaxingao commented on a diff in the pull request:
https://github.com/apache/spark/pull/20400#discussion_r164966938
--- Diff: python/pyspark/sql/window.py ---
@@ -124,16 +126,20 @@ def rangeBetween(start, end):
values directly.
:param start: boundary start, inclusive.
- The frame is unbounded if this is
``Window.unboundedPreceding``, or
+ The frame is unbounded if this is
``Window.unboundedPreceding``,
+
``org.apache.spark.sql.catalyst.expressions.UnboundedPreceding``, or
any value less than or equal to max(-sys.maxsize,
-9223372036854775808).
:param end: boundary end, inclusive.
- The frame is unbounded if this is
``Window.unboundedFollowing``, or
+ The frame is unbounded if this is
``Window.unboundedFollowing``,
+
``org.apache.spark.sql.catalyst.expressions.UnboundedFollowing``, or
any value greater than or equal to min(sys.maxsize,
9223372036854775807).
--- End diff --
@jiangxb1987 Sorry for the extra line. Will remove.
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