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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2023/02/01 01:17:00 UTC

[jira] [Resolved] (SPARK-42191) Support udf luhn_check

     [ https://issues.apache.org/jira/browse/SPARK-42191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan resolved SPARK-42191.
---------------------------------
    Fix Version/s: 3.5.0
       Resolution: Fixed

Issue resolved by pull request 39747
[https://github.com/apache/spark/pull/39747]

> Support udf luhn_check 
> -----------------------
>
>                 Key: SPARK-42191
>                 URL: https://issues.apache.org/jira/browse/SPARK-42191
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Vinod KC
>            Assignee: Vinod KC
>            Priority: Minor
>             Fix For: 3.5.0
>
>
> Support UDF to check if a given number string is a valid Luhn number. It shall return true if the number string is a valid Luhn number, and false otherwise.
> This checksum function is widely applied to credit card numbers and government identification numbers to distinguish valid numbers from mistyped, incorrect numbers
> Ref : [trino|https://trino.io/docs/current/functions/string.html]
>          [Algorithm|https://en.wikipedia.org/wiki/Luhn_algorithm]



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