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Posted to issues@spark.apache.org by "Ram Kandasamy (JIRA)" <ji...@apache.org> on 2015/10/31 23:27:27 UTC
[jira] [Resolved] (SPARK-11427) DataFrame's intersect method does
not work, returns 1
[ https://issues.apache.org/jira/browse/SPARK-11427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ram Kandasamy resolved SPARK-11427.
-----------------------------------
Resolution: Duplicate
> DataFrame's intersect method does not work, returns 1
> -----------------------------------------------------
>
> Key: SPARK-11427
> URL: https://issues.apache.org/jira/browse/SPARK-11427
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.5.0
> Reporter: Ram Kandasamy
>
> Hello,
> I was working with dataframes and I found the intersect() method seems to always return '1'. The RDD's intersection() method does work properly.
> Consider this example:
> scala> val firstFile = sqlContext.read.parquet("/Users/ramkandasamy/sparkData/2015-07-25/*").select("id").distinct
> firstFile: org.apache.spark.sql.DataFrame = [id: string]
> scala> firstFile.count
> res4: Long = 1072046
> scala> firstFile.intersect(firstFile).count
> res5: Long = 1
> scala> firstFile.rdd.intersection(firstFile.rdd).count
> res6: Long = 1072046
> I have tried various different cases, and for some reason, the dataframe's intersect method always returns 1.
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