switched to immutable.Set and it works. this is weird as the code in ScalaReflection.scala seems to support scala.collection.Set
cc: dev list, in case this is a bug On Thu, Aug 8, 2019 at 8:41 PM Mohit Jaggi <mohitja...@gmail.com> wrote: > Is this not supported? I found this diff > <https://github.com/apache/spark/pull/18416/files> and wonder if this is > a bug or am I doing something wrong? > > ======== see below ========= > > import scala.collection.Set > case class A(ps: Set[Int], x: Int) > > val az = Seq(A(Set(1, 2), 1), A(Set(2), 2)) > > az.toDS > java.lang.UnsupportedOperationException: Schema for type > scala.collection.Set[scala.Int] is not supported > at > org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$schemaFor$1.apply(ScalaReflection.scala:789) > at > org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$schemaFor$1.apply(ScalaReflection.scala:724) > at > scala.reflect.internal.tpe.TypeConstraints$UndoLog.undo(TypeConstraints.scala:56) > at > org.apache.spark.sql.catalyst.ScalaReflection$class.cleanUpReflectionObjects(ScalaReflection.scala:906) > at > org.apache.spark.sql.catalyst.ScalaReflection$.cleanUpReflectionObjects(ScalaReflection.scala:46) > at > org.apache.spark.sql.catalyst.ScalaReflection$.schemaFor(ScalaReflection.scala:723) > at > org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$org$apache$spark$sql$catalyst$ScalaReflection$$deserializerFor$1$$anonfun$7.apply(ScalaReflection.scala:388) > at > org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$org$apache$spark$sql$catalyst$ScalaReflection$$deserializerFor$1$$anonfun$7.apply(ScalaReflection.scala:387) > at > scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) > at > scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) > at scala.collection.immutable.List.foreach(List.scala:392) > at scala.collection.TraversableLike$class.map(TraversableLike.scala:234) > at scala.collection.immutable.List.map(List.scala:296) > at > org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$org$apache$spark$sql$catalyst$ScalaReflection$$deserializerFor$1.apply(ScalaReflection.scala:387) > at > org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$org$apache$spark$sql$catalyst$ScalaReflection$$deserializerFor$1.apply(ScalaReflection.scala:157) > at > scala.reflect.internal.tpe.TypeConstraints$UndoLog.undo(TypeConstraints.scala:56) > at > org.apache.spark.sql.catalyst.ScalaReflection$class.cleanUpReflectionObjects(ScalaReflection.scala:906) > at > org.apache.spark.sql.catalyst.ScalaReflection$.cleanUpReflectionObjects(ScalaReflection.scala:46) > at > org.apache.spark.sql.catalyst.ScalaReflection$.org$apache$spark$sql$catalyst$ScalaReflection$$deserializerFor(ScalaReflection.scala:157) > at > org.apache.spark.sql.catalyst.ScalaReflection$.deserializerFor(ScalaReflection.scala:145) > at > org.apache.spark.sql.catalyst.encoders.ExpressionEncoder$.apply(ExpressionEncoder.scala:72) > at org.apache.spark.sql.Encoders$.product(Encoders.scala:276) > at > org.apache.spark.sql.LowPrioritySQLImplicits$class.newProductEncoder(SQLImplicits.scala:248) > at > org.apache.spark.sql.SQLImplicits.newProductEncoder(SQLImplicits.scala:34) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:6) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:82) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:84) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:86) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:88) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:90) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:92) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:94) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:96) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:98) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:100) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw$$iw.<init>(command-661233094182065:102) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw$$iw.<init>(command-661233094182065:104) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw$$iw.<init>(command-661233094182065:106) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw$$iw.<init>(command-661233094182065:108) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$$iw.<init>(command-661233094182065:110) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read.<init>(command-661233094182065:112) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$.<init>(command-661233094182065:116) > at > line9f6df40864bf4b14acca9f5c334e0286112.$read$.<clinit>(command-661233094182065) > at > line9f6df40864bf4b14acca9f5c334e0286112.$eval$.$print$lzycompute(<notebook>:7) > at line9f6df40864bf4b14acca9f5c334e0286112.$eval$.$print(<notebook>:6) > at line9f6df40864bf4b14acca9f5c334e0286112.$eval.$print(<notebook>) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:793) > at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1054) > at > scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:645) > at > scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:644) > at > scala.reflect.internal.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31) > at > scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:19) > at > scala.tools.nsc.interpreter.IMain$WrappedRequest.loadAndRunReq(IMain.scala:644) > at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:576) > at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:572) > at > com.databricks.backend.daemon.driver.DriverILoop.execute(DriverILoop.scala:215) > at > com.databricks.backend.daemon.driver.ScalaDriverLocal$$anonfun$repl$1.apply$mcV$sp(ScalaDriverLocal.scala:197) > at > com.databricks.backend.daemon.driver.ScalaDriverLocal$$anonfun$repl$1.apply(ScalaDriverLocal.scala:197) > at > com.databricks.backend.daemon.driver.ScalaDriverLocal$$anonfun$repl$1.apply(ScalaDriverLocal.scala:197) > at > com.databricks.backend.daemon.driver.DriverLocal$TrapExitInternal$.trapExit(DriverLocal.scala:653) > at > com.databricks.backend.daemon.driver.DriverLocal$TrapExit$.apply(DriverLocal.scala:606) > at > com.databricks.backend.daemon.driver.ScalaDriverLocal.repl(ScalaDriverLocal.scala:197) > at > com.databricks.backend.daemon.driver.DriverLocal$$anonfun$execute$8.apply(DriverLocal.scala:342) > at > com.databricks.backend.daemon.driver.DriverLocal$$anonfun$execute$8.apply(DriverLocal.scala:319) > at > com.databricks.logging.UsageLogging$$anonfun$withAttributionContext$1.apply(UsageLogging.scala:238) > at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58) > at > com.databricks.logging.UsageLogging$class.withAttributionContext(UsageLogging.scala:233) > at > com.databricks.backend.daemon.driver.DriverLocal.withAttributionContext(DriverLocal.scala:47) > at > com.databricks.logging.UsageLogging$class.withAttributionTags(UsageLogging.scala:271) > at > com.databricks.backend.daemon.driver.DriverLocal.withAttributionTags(DriverLocal.scala:47) > at > com.databricks.backend.daemon.driver.DriverLocal.execute(DriverLocal.scala:319) > at > com.databricks.backend.daemon.driver.DriverWrapper$$anonfun$tryExecutingCommand$2.apply(DriverWrapper.scala:644) > at > com.databricks.backend.daemon.driver.DriverWrapper$$anonfun$tryExecutingCommand$2.apply(DriverWrapper.scala:644) > at scala.util.Try$.apply(Try.scala:192) > at > com.databricks.backend.daemon.driver.DriverWrapper.tryExecutingCommand(DriverWrapper.scala:639) > at > com.databricks.backend.daemon.driver.DriverWrapper.getCommandOutputAndError(DriverWrapper.scala:485) > at > com.databricks.backend.daemon.driver.DriverWrapper.executeCommand(DriverWrapper.scala:597) > at > com.databricks.backend.daemon.driver.DriverWrapper.runInnerLoop(DriverWrapper.scala:390) > at > com.databricks.backend.daemon.driver.DriverWrapper.runInner(DriverWrapper.scala:337) > at > com.databricks.backend.daemon.driver.DriverWrapper.run(DriverWrapper.scala:219) > at java.lang.Thread.run(Thread.java:748) > Command took 0.82 seconds -- by mohitja...@gmail.com at 8/8/2019, 8:36:06 > PM on My Cluster >
