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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2022/07/27 05:59:00 UTC
[jira] [Commented] (SPARK-39832) regexp_replace should support column arguments
[ https://issues.apache.org/jira/browse/SPARK-39832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17571748#comment-17571748 ]
Hyukjin Kwon commented on SPARK-39832:
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Yeah, are you interested in submitting a PR?
> regexp_replace should support column arguments
> ----------------------------------------------
>
> Key: SPARK-39832
> URL: https://issues.apache.org/jira/browse/SPARK-39832
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 3.3.0
> Reporter: Brian Schaefer
> Priority: Major
> Labels: starter
>
> {{F.regexp_replace}} in PySpark currently only supports strings for the second and third argument: [https://github.com/apache/spark/blob/1df6006ea977ae3b8c53fe33630e277e8c1bc49c/python/pyspark/sql/functions.py#L3265]
> In Scala, columns are also supported: [https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/functions.scala#L2836|https://github.com/apache/spark/blob/1df6006ea977ae3b8c53fe33630e277e8c1bc49c/sql/core/src/main/scala/org/apache/spark/sql/functions.scala#L2836]
> The desire to use columns as arguments for the function has been raised previously on StackExchange: [https://stackoverflow.com/questions/64613761/in-pyspark-using-regexp-replace-how-to-replace-a-group-with-value-from-another|https://stackoverflow.com/questions/64613761/in-pyspark-using-regexp-replace-how-to-replace-a-group-with-value-from-another,], where the suggested fix was to use {{{}F.expr{}}}.
> It should be relatively straightforward to support in PySpark the two function signatures supported in Scala.
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