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https://issues.apache.org/jira/browse/SPARK-2449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust updated SPARK-2449:
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Target Version/s: 1.3.0 (was: 1.2.0)
> Spark sql reflection code requires a constructor taking all the fields for
> the table
> ------------------------------------------------------------------------------------
>
> Key: SPARK-2449
> URL: https://issues.apache.org/jira/browse/SPARK-2449
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.0.0
> Reporter: Ian O Connell
>
> The reflection code does a lookup for the fields passed to the constructor to
> make the types for the table. Specifically the code:
> val params = t.member(nme.CONSTRUCTOR).asMethod.paramss
> in ScalaReflection.scala
> Simple repo case from the spark shell:
> trait PersonTrait extends Product
> case class Person(a: Int) extends PersonTrait
> val l: List[PersonTrait] = List(1, 2, 3, 4).map(Person(_))
> val sqlContext = new org.apache.spark.sql.SQLContext(sc)
> import sqlContext._
> sc.parallelize(l).registerAsTable("people")
> scala> sc.parallelize(l).registerAsTable("people")
> scala.ScalaReflectionException: <none> is not a method
> at scala.reflect.api.Symbols$SymbolApi$class.asMethod(Symbols.scala:279)
> at
> scala.reflect.internal.Symbols$SymbolContextApiImpl.asMethod(Symbols.scala:73)
> at
> org.apache.spark.sql.catalyst.ScalaReflection$.schemaFor(ScalaReflection.scala:52)
> at
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