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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/06/12 16:58:59 UTC

[GitHub] [spark] xinrong-databricks commented on a diff in pull request #36840: [SPARK-39443][PYTHON][DOC] Improve docstring of pyspark.sql.functions.col/first

xinrong-databricks commented on code in PR #36840:
URL: https://github.com/apache/spark/pull/36840#discussion_r895207134


##########
python/pyspark/sql/functions.py:
##########
@@ -1240,6 +1241,17 @@ def first(col: "ColumnOrName", ignorenulls: bool = False) -> Column:
     -----
     The function is non-deterministic because its results depends on the order of the
     rows which may be non-deterministic after a shuffle.
+
+    Examples
+    --------
+    >>> df = spark.createDataFrame([("Alice", 2), ("Bob", 5)], ("name", "age")

Review Comment:
   Good catch! Thanks.



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