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https://issues.apache.org/jira/browse/SPARK-5737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevin Jung resolved SPARK-5737.
-------------------------------
Resolution: Fixed
Fix Version/s: 1.5.1
> Scanning duplicate columns from parquet table
> ---------------------------------------------
>
> Key: SPARK-5737
> URL: https://issues.apache.org/jira/browse/SPARK-5737
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.2.1
> Reporter: Kevin Jung
> Fix For: 1.5.1
>
>
> {quote}
> import org.apache.spark.sql._
> val sqlContext = new SQLContext(sc)
> import sqlContext._
> val rdd = sqlContext.parquetFile("temp.parquet")
> rdd.select('d1,'d1,'d2,'d2).take(3).foreach(println)
> {quote}
> The results of above code have null values at the preceding columns of
> duplicate two.
> For example,
> {quote}
> [null,-5.7,null,121.05]
> [null,-61.17,null,108.91]
> [null,50.60,null,72.15]
> {quote}
> This happens only in ParquetTableScan. PysicalRDD works fine and the rows
> have duplicate values like...
> {quote}
> [-5.7,-5.7,121.05,121.05]
> [-61.17,-61.17,108.91,108.91]
> [50.60,50.60,72.15,72.15]
> {quote}
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