[jira] [Commented] (SPARK-41907) Function `sampleby` return parity

["jiaan.geng (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-41907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17656376#comment-17656376 ] 

jiaan.geng commented on SPARK-41907:
------------------------------------

I want take a look.

> Function `sampleby` return parity
> ---------------------------------
>
>                 Key: SPARK-41907
>                 URL: https://issues.apache.org/jira/browse/SPARK-41907
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Connect
>    Affects Versions: 3.4.0
>            Reporter: Sandeep Singh
>            Priority: Major
>
> {code:java}
> df = self.spark.createDataFrame([Row(a=i, b=(i % 3)) for i in range(100)])
> sampled = df.stat.sampleBy("b", fractions={0: 0.5, 1: 0.5}, seed=0)
> self.assertTrue(sampled.count() == 35){code}
> {code:java}
> Traceback (most recent call last):
>   File "/Users/s.singh/personal/spark-oss/python/pyspark/sql/tests/test_functions.py", line 202, in test_sampleby
>     self.assertTrue(sampled.count() == 35)
> AssertionError: False is not true {code}



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