Details
Major Description
Code in Spark Shell as follows:
val sqlContext = new org.apache.spark.sql.SQLContext(sc) val path = "path/to/json" sqlContext.jsonFile(path).register("Table") val t = sqlContext.sql("select * from Table group by a") t.collect
Let's look into the schema of `Table`
root |-- a: integer (nullable = true) |-- arr: array (nullable = true) | |-- element: integer (containsNull = false) |-- createdAt: string (nullable = true) |-- f: struct (nullable = true) | |-- __type: string (nullable = true) | |-- className: string (nullable = true) | |-- objectId: string (nullable = true) |-- objectId: string (nullable = true) |-- s: string (nullable = true) |-- updatedAt: string (nullable = true)
Exception will be throwed:
org.apache.spark.sql.catalyst.errors.package$TreeNodeException: Expression not in GROUP BY: arr#9, tree: Aggregate [a#8], [a#8,arr#9,createdAt#10,f#11,objectId#12,s#13,updatedAt#14] Subquery TestImport LogicalRDD [a#8,arr#9,createdAt#10,f#11,objectId#12,s#13,updatedAt#14], MappedRDD[18] at map at JsonRDD.scala:47 at org.apache.spark.sql.catalyst.analysis.Analyzer$CheckAggregation$$anonfun$apply$3$$anonfun$applyOrElse$7.apply(Analyzer.scala:126) at org.apache.spark.sql.catalyst.analysis.Analyzer$CheckAggregation$$anonfun$apply$3$$anonfun$applyOrElse$7.apply(Analyzer.scala:125) at scala.Option.foreach(Option.scala:236) at org.apache.spark.sql.catalyst.analysis.Analyzer$CheckAggregation$$anonfun$apply$3.applyOrElse(Analyzer.scala:125) at org.apache.spark.sql.catalyst.analysis.Analyzer$CheckAggregation$$anonfun$apply$3.applyOrElse(Analyzer.scala:108) at org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:144) at org.apache.spark.sql.catalyst.trees.TreeNode.transform(TreeNode.scala:135) at org.apache.spark.sql.catalyst.analysis.Analyzer$CheckAggregation$.apply(Analyzer.scala:108) at org.apache.spark.sql.catalyst.analysis.Analyzer$CheckAggregation$.apply(Analyzer.scala:106) at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1$$anonfun$apply$2.apply(RuleExecutor.scala:61) at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1$$anonfun$apply$2.apply(RuleExecutor.scala:59) at scala.collection.IndexedSeqOptimized$class.foldl(IndexedSeqOptimized.scala:51) at scala.collection.IndexedSeqOptimized$class.foldLeft(IndexedSeqOptimized.scala:60) at scala.collection.mutable.WrappedArray.foldLeft(WrappedArray.scala:34) at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1.apply(RuleExecutor.scala:59) at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1.apply(RuleExecutor.scala:51) at scala.collection.immutable.List.foreach(List.scala:318) at org.apache.spark.sql.catalyst.rules.RuleExecutor.apply(RuleExecutor.scala:51) at org.apache.spark.sql.SQLContext$QueryExecution.analyzed$lzycompute(SQLContext.scala:411) at org.apache.spark.sql.SQLContext$QueryExecution.analyzed(SQLContext.scala:411) at org.apache.spark.sql.SQLContext$QueryExecution.withCachedData$lzycompute(SQLContext.scala:412) at org.apache.spark.sql.SQLContext$QueryExecution.withCachedData(SQLContext.scala:412) at org.apache.spark.sql.SQLContext$QueryExecution.optimizedPlan$lzycompute(SQLContext.scala:413) at org.apache.spark.sql.SQLContext$QueryExecution.optimizedPlan(SQLContext.scala:413) at org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan$lzycompute(SQLContext.scala:418) at org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan(SQLContext.scala:416) at org.apache.spark.sql.SQLContext$QueryExecution.executedPlan$lzycompute(SQLContext.scala:422) at org.apache.spark.sql.SQLContext$QueryExecution.executedPlan(SQLContext.scala:422) at org.apache.spark.sql.SchemaRDD.collect(SchemaRDD.scala:444) at $iwC$$iwC$$iwC$$iwC.<init>(<console>:17) at $iwC$$iwC$$iwC.<init>(<console>:22) at $iwC$$iwC.<init>(<console>:24) at $iwC.<init>(<console>:26) at <init>(<console>:28) at .<init>(<console>:32) at .<clinit>(<console>) at .<init>(<console>:7) at .<clinit>(<console>) at $print(<console>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:852) at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1125) at org.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:674) at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:705) at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:669) at org.apache.spark.repl.SparkILoop.reallyInterpret$1(SparkILoop.scala:828) at org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:873) at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:785) at org.apache.spark.repl.SparkILoop.processLine$1(SparkILoop.scala:628) at org.apache.spark.repl.SparkILoop.innerLoop$1(SparkILoop.scala:636) at org.apache.spark.repl.SparkILoop.loop(SparkILoop.scala:641) at org.apache.spark.repl.SparkILoop$$anonfun$process$1.apply$mcZ$sp(SparkILoop.scala:968) at org.apache.spark.repl.SparkILoop$$anonfun$process$1.apply(SparkILoop.scala:916) at org.apache.spark.repl.SparkILoop$$anonfun$process$1.apply(SparkILoop.scala:916) at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135) at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:916) at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1011) at org.apache.spark.repl.Main$.main(Main.scala:31) at org.apache.spark.repl.Main.main(Main.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.spark.deploy.SparkSubmit$.launch(SparkSubmit.scala:358) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:75) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
