zhengruifeng commented on code in PR #38914:
URL: https://github.com/apache/spark/pull/38914#discussion_r1041728393
##########
python/pyspark/sql/tests/connect/test_connect_function.py:
##########
@@ -413,6 +412,22 @@ def test_aggregation_functions(self):
sdf.groupBy("a").agg(SF.percentile_approx(sdf.b, [0.1,
0.9])).toPandas(),
)
+ # test count_distinct
+ self.assert_eq(
+ cdf.select(CF.count_distinct("b"),
CF.count_distinct(cdf.c)).toPandas(),
+ sdf.select(SF.count_distinct("b"),
SF.count_distinct(sdf.c)).toPandas(),
+ )
+ # The output column names of 'groupBy.agg(count_distinct)' in PySpark
Review Comment:
this incorrect column name seems not easy to fix, since it should not be
related to this PR, I change the column names and compare the values here.
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