Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/16193#discussion_r91250161
--- Diff: python/pyspark/sql/tests.py ---
@@ -360,6 +360,15 @@ def test_broadcast_in_udf(self):
[res] = self.spark.sql("SELECT MYUDF('')").collect()
self.assertEqual("", res[0])
+ def test_udf_with_filter_function(self):
+ df = self.spark.createDataFrame([(1, "1"), (2, "2"), (1, "2"), (1,
"2")], ["key", "value"])
+ from pyspark.sql.functions import udf, col
+ from pyspark.sql.types import BooleanType
+
+ my_filter = udf(lambda a: a < 2, BooleanType())
+ sel = df.select(col("key"),
col("value")).filter((my_filter(col("key"))) & (df.value < "2"))
--- End diff --
does this test fail before this PR?
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