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From "YoungGyu Chun (Jira)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-29969) parse_url function result in incorrect result
Date Tue, 03 Mar 2020 00:46:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-29969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17049806#comment-17049806
] 

YoungGyu Chun commented on SPARK-29969:
---------------------------------------

Thank you [~dongjoon] [~xiaoxigua] [~hyukjin.kwon]

> parse_url function result in incorrect result
> ---------------------------------------------
>
>                 Key: SPARK-29969
>                 URL: https://issues.apache.org/jira/browse/SPARK-29969
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.1, 2.4.4
>            Reporter: Victor Zhang
>            Priority: Major
>         Attachments: hive-result.jpg, spark-result.jpg
>
>
> In this Jira using java.net.URI instead of java.net.URL for performance reason.
> https://issues.apache.org/jira/browse/SPARK-16826
> However, in the case of some unconventional parameters, it can lead to incorrect results.
> For example, when the URL is encoded, the function cannot resolve the correct result.
>  
> {code}
> 0: jdbc:hive2://localhost:10000> SELECT parse_url('http://uzzf.down.gsxzq.com/download/%E5%B8%B8%E7%94%A8%E9%98%80%E9%97%A8CAD%E5%9B%BE%E7%BA%B8%E5%A4%',
'HOST');
> +------------------------------------------------------------------------------------------------------------------------+--+
> | parse_url(http://uzzf.down.gsxzq.com/download/%E5%B8%B8%E7%94%A8%E9%98%80%E9%97%A8CAD%E5%9B%BE%E7%BA%B8%E5%A4%,
HOST) |
> +------------------------------------------------------------------------------------------------------------------------+--+
> | NULL |
> +------------------------------------------------------------------------------------------------------------------------+--+
> 1 row selected (0.094 seconds)
>  
> hive> SELECT parse_url('http://uzzf.down.gsxzq.com/download/%E5%B8%B8%E7%94%A8%E9%98%80%E9%97%A8CAD%E5%9B%BE%E7%BA%B8%E5%A4%',
'HOST');
> OK
> HEADER: _c0
> uzzf.down.gsxzq.com
> Time taken: 4.423 seconds, Fetched: 1 row(s)
> {code}
>  
> Here's a similar problem.
> https://issues.apache.org/jira/browse/SPARK-23056
> Our team used the spark function to run data for months, but now we have to run it again.
> It's just too painful.:(:(:(
>  
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>  



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