Takeshi Yamamuro created SPARK-8930: ---------------------------------------
Summary: Support a star '*' in the generator function argument Key: SPARK-8930 URL: https://issues.apache.org/jira/browse/SPARK-8930 Project: Spark Issue Type: Bug Components: SQL Affects Versions: 1.4.0 Reporter: Takeshi Yamamuro The current implementation throws an exception if generators contain a star '*' like codes blow; val df = Seq(("1", "1,2"), ("2", "4"), ("3", "7,8,9")).toDF("prefix", "csv") checkAnswer( df.explode($"*") { case Row(prefix: String, csv: String) => csv.split(",").map(v => Tuple1(prefix + ":" + v)) }, Row("1", "1,2", "1:1") :: Row("1", "1,2", "1:2") :: Row("2", "4", "2:4") :: Row("3", "7,8,9", "3:7") :: Row("3", "7,8,9", "3:8") :: Row("3", "7,8,9", "3:9") :: Nil ) [info] - explode takes UnresolvedStar *** FAILED *** (14 milliseconds) [info] org.apache.spark.sql.AnalysisException: cannot resolve '_1' given input columns prefix, csv; [info] at org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42) [info] at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:55) [info] at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:52) [info] at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:291) [info] at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:291) [info] at org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:51) [info] at org.apache.spark.sql.catalyst.trees.TreeNode.transformUp(TreeNode.scala:290) [info] at org.apache.spark.sql.catalyst.plans.QueryPlan.transformExpressionUp$1(QueryPlan.scala:107) [info] at org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2(QueryPlan.scala:117) [info] at org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2$1.apply(QueryPlan.scala:1 21) [info] at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) [info] at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) [info] at scala.collection.immutable.List.foreach(List.scala:318) [info] at scala.collection.TraversableLike$class.map(TraversableLike.scala:244) [info] at scala.collection.AbstractTraversable.map(Traversable.scala:105) -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org