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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/05/12 18:57:00 UTC
[jira] [Commented] (SPARK-35382) Fix lambda variable name issues in
nested DataFrame functions in Python APIs
[ https://issues.apache.org/jira/browse/SPARK-35382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17343484#comment-17343484 ]
Apache Spark commented on SPARK-35382:
--------------------------------------
User 'ueshin' has created a pull request for this issue:
https://github.com/apache/spark/pull/32523
> Fix lambda variable name issues in nested DataFrame functions in Python APIs
> ----------------------------------------------------------------------------
>
> Key: SPARK-35382
> URL: https://issues.apache.org/jira/browse/SPARK-35382
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 3.1.1
> Reporter: Hyukjin Kwon
> Priority: Critical
> Labels: correctness
>
> Python side also has the same issue as SPARK-34794
> {code}
> from pyspark.sql.functions import *
> df = sql("SELECT array(1, 2, 3) as numbers, array('a', 'b', 'c') as letters")
> df.select(
> transform(
> "numbers",
> lambda n: transform("letters", lambda l: struct(n.alias("n"), l.alias("l")))
> )
> ).show()
> {code}
> {code}
> +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> |transform(numbers, lambdafunction(transform(letters, lambdafunction(struct(namedlambdavariable() AS n, namedlambdavariable() AS l), namedlambdavariable())), namedlambdavariable()))|
> +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> | [[{a, a}, {b, b},...|
> +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> {code}
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