[jira] [Created] (SPARK-15029) Bad error message for two generators in the project clause

["Reynold Xin (JIRA)" <ji...@apache.org>]

Reynold Xin created SPARK-15029:
-----------------------------------

             Summary: Bad error message for two generators in the project clause
                 Key: SPARK-15029
                 URL: https://issues.apache.org/jira/browse/SPARK-15029
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Reynold Xin


{code}
scala> spark.range(1000).map(i => (Array[Long](i), Array[Long](i))).selectExpr("explode(_1)", "explode(_2)").explain(true)
org.apache.spark.sql.AnalysisException: Only one generator allowed per select but Generate and and Explode found.;
  at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$class.failAnalysis(CheckAnalysis.scala:39)
  at org.apache.spark.sql.catalyst.analysis.Analyzer.failAnalysis(Analyzer.scala:54)
  at org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveGenerate$$anonfun$apply$21$$anonfun$53.apply(Analyzer.scala:1275)
  at org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveGenerate$$anonfun$apply$21$$anonfun$53.apply(Analyzer.scala:1272)
  at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
  at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
  at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
  at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
  at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:241)
  at scala.collection.AbstractTraversable.flatMap(Traversable.scala:104)
{code}

It's confusing to call one "Generator" and the other "Explode". There is also two "and"s.





--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org