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From "Josh Rosen (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-4533) SchemaRDD API error: Can only subtract another SchemaRDD
Date Sun, 31 May 2015 21:14:17 GMT

     [ https://issues.apache.org/jira/browse/SPARK-4533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Rosen resolved SPARK-4533.
-------------------------------
    Resolution: Invalid

AFAIK this is not a bug, since calling {{keyBy()}} on a SchemaRDD returns a non-schema RDD.
 Therefore, I'm marking this issue as "Invalid" and closing it.

> SchemaRDD API error: Can only subtract another SchemaRDD
> --------------------------------------------------------
>
>                 Key: SPARK-4533
>                 URL: https://issues.apache.org/jira/browse/SPARK-4533
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark
>    Affects Versions: 1.1.0
>         Environment: JDK6/7
>            Reporter: Shawn Guo
>            Priority: Minor
>
> There are two unexpected validations in below SchemaRDD APIs. 
> subtract(self, other, numPartitions=None)
>         "Can only subtract another SchemaRDD"
> intersection(self, other)
>         "Can only intersect with another SchemaRDD"
> "Can only subtract another SchemaRDD" will be thrown when SchemaRDD subtract other types
of RDD.
> Reproduce Steps:
> A = SchemaRDD
> B = SchemaRDD
> A_APX= A.keyBy(lambda line: None)
> B_APX=B.keyBy(lambda line: None)
> {color:red}
> CROSSED = A_APX.join(B_APX).map(lambda line: line[1]).filter(filter condition).map(lambda
line: line[0]))
> {color}
> C=A.subtract(CROSSED)  {color:red}#ERROR:Can only subtract another SchemaRDD{color}



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