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