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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/03/06 07:00:38 UTC

[jira] [Commented] (SPARK-19832) DynamicPartitionWriteTask should escape the partition name

    [ https://issues.apache.org/jira/browse/SPARK-19832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15896813#comment-15896813 ] 

Apache Spark commented on SPARK-19832:
--------------------------------------

User 'windpiger' has created a pull request for this issue:
https://github.com/apache/spark/pull/17173

> DynamicPartitionWriteTask should escape the partition name 
> -----------------------------------------------------------
>
>                 Key: SPARK-19832
>                 URL: https://issues.apache.org/jira/browse/SPARK-19832
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Song Jun
>
> Currently in DynamicPartitionWriteTask, when we get the paritionPath of a parition, we just escape the partition value, not escape the partition name.
> this will cause some problems for some  special partition name situation, for example :
> 1) if the partition name contains '%' etc,  there will be two partition path created in the filesytem, one is for escaped path like '/path/a%25b=1', another is for unescaped path like '/path/a%b=1'.
> and the data inserted stored in unescaped path, while the show partitions table will return 'a%25b=1' which the partition name is escaped. So here it is not consist. And I think the data should be stored in the escaped path in filesystem, which Hive2.0.0 also have the same action.
> 2) if the partition name contains ':', there will throw exception that new Path("/path","a:b"), this is illegal which has a colon in the relative path.
> {code}
> java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: a:b
>   at org.apache.hadoop.fs.Path.initialize(Path.java:205)
>   at org.apache.hadoop.fs.Path.<init>(Path.java:171)
>   at org.apache.hadoop.fs.Path.<init>(Path.java:88)
>   ... 48 elided
> Caused by: java.net.URISyntaxException: Relative path in absolute URI: a:b
>   at java.net.URI.checkPath(URI.java:1823)
>   at java.net.URI.<init>(URI.java:745)
>   at org.apache.hadoop.fs.Path.initialize(Path.java:202)
>   ... 50 more
> {code}



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