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Posted to issues@spark.apache.org by "Kritsada Limpawatkul (Jira)" <ji...@apache.org> on 2020/07/09 09:21:00 UTC
[jira] [Commented] (SPARK-32240) UDF parse_url with a URL that
contains pipe(|) will give incorrect result
[ https://issues.apache.org/jira/browse/SPARK-32240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154376#comment-17154376 ]
Kritsada Limpawatkul commented on SPARK-32240:
----------------------------------------------
[https://stackoverflow.com/questions/57365841/spark-parse-url-does-not-work-with-pipes]
I see this StackOverflow link asked the same problem from last year.
> UDF parse_url with a URL that contains pipe(|) will give incorrect result
> -------------------------------------------------------------------------
>
> Key: SPARK-32240
> URL: https://issues.apache.org/jira/browse/SPARK-32240
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.4, 3.0.0
> Reporter: Kritsada Limpawatkul
> Priority: Major
>
> I try to get the host from the URL with the code below.
> {code:java}
> Seq(
> "https://a.b.c/index.php?params1=a|b¶ms2=x",
> "https://a.b.c/index.php?params1=a"
> )
> .toDF("url")
> .withColumn("host", callUDF("parse_url", $"url", lit("HOST")))
> .show(false){code}
> The result of the code is as follows.
> {code:java}
> +---------------------------------------------+-----+
> |url |host |
> +---------------------------------------------+-----+
> |https://a.b.c/index.php?params1=a|b¶ms2=x|null |
> |https://a.b.c/index.php?params1=a |a.b.c|
> +---------------------------------------------+-----+
> {code}
> It seems like the host becomes null when the URL contains any pipe(|) character.
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