[jira] [Created] (SPARK-1913) column pruning problem of Parquet File

["Chen Chao (JIRA)" <ji...@apache.org>]

Chen Chao created SPARK-1913:
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             Summary: column pruning problem of Parquet  File
                 Key: SPARK-1913
                 URL: https://issues.apache.org/jira/browse/SPARK-1913
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 1.0.0
         Environment: mac os 10.9.2
            Reporter: Chen Chao


case class Person(name: String, age: Int)

if we use Parquet file, the following statement will throw a exception says  java.lang.IllegalArgumentException: Column age does not exist.
sql("SELECT name  FROM parquetFile WHERE age >= 13 AND age <= 19") 
we have to add age column after SELECT in order to make it right:
sql("SELECT name , age  FROM parquetFile WHERE age >= 13 AND age <= 19") 

The same error also occurs when we use DSL:
 parquetFile.where('key === 1).select('value as 'a).collect().foreach(println)
will tell us can not find column 'key',we have to fix like this : 
 parquetFile.where('key === 1).select('key ,'value as 'a).collect().foreach(println)

Obviously, that's not the way we want!



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