HyukjinKwon commented on code in PR #38288:
URL: https://github.com/apache/spark/pull/38288#discussion_r999154595
##########
python/pyspark/sql/functions.py:
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@@ -4884,6 +4884,42 @@ def check_string_field(field, fieldName): # type:
ignore[no-untyped-def]
return _invoke_function("window", time_col, windowDuration)
+def window_time(
+ windowColumn: "ColumnOrName",
+) -> Column:
+ """Computes the event time from a window column. The column window values
are produced
+ by window aggregating operators and are of type
+ StructType { start: TimestampType, end: TimestampType } where start is
inclusive and
+ end is exclusive. The event time of records produced by window aggregating
operators can be
+ computed as window_time(window) and are window.end - 1 microsecond (as
microsecond is the
Review Comment:
I would do something like this to make it clear: which part is code
```suggestion
computed as ``window_time(window)`` and are ``window.end -
lit(1).alias("microsecond")`` (as microsecond is the
```
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