But when I do so, I get this error:
com.databricks.backend.common.rpc.SparkDriverExceptions$SQLExecutionException: org.apache.spark.sql.AnalysisException: [UC_COMMAND_NOT_SUPPORTED] Create external Hive function is not supported in Unity Catalog.
at com.databricks.sql.managedcatalog.ManagedCatalogErrors$.operationNotSupportedException(ManagedCatalogErrors.scala:50)
at com.databricks.sql.managedcatalog.ManagedCatalogSessionCatalog.rejectOperationsForUnityCatalog(ManagedCatalogSessionCatalog.scala:288)
at com.databricks.sql.managedcatalog.ManagedCatalogSessionCatalog.rejectOperationsForUnityCatalog(ManagedCatalogSessionCatalog.scala:294)
at com.databricks.sql.managedcatalog.ManagedCatalogSessionCatalog.createFunction(ManagedCatalogSessionCatalog.scala:1633)
at org.apache.spark.sql.execution.command.CreateFunctionCommand.run(functions.scala:95)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:80)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:78)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.executeCollect(commands.scala:89)
at org.apache.spark.sql.execution.QueryExecution$$anonfun$$nestedInanonfun$eagerlyExecuteCommands$1$1.$anonfun$applyOrElse$2(QueryExecution.scala:241)
at org.apache.spark.sql.execution.SQLExecution$.$anonfun$withCustomExecutionEnv$8(SQLExecution.scala:243)
at org.apache.spark.sql.execution.SQLExecution$.withSQLConfPropagated(SQLExecution.scala:392)
at org.apache.spark.sql.execution.SQLExecution$.$anonfun$withCustomExecutionEnv$1(SQLExecution.scala:188)
at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:985)
at org.apache.spark.sql.execution.SQLExecution$.withCustomExecutionEnv(SQLExecution.scala:142)
at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:342)
at org.apache.spark.sql.execution.QueryExecution$$anonfun$$nestedInanonfun$eagerlyExecuteCommands$1$1.$anonfun$applyOrElse$1(QueryExecution.scala:241)
at org.apache.spark.sql.execution.QueryExecution.org$apache$spark$sql$execution$QueryExecution$$withMVTagsIfNecessary(QueryExecution.scala:226)
at org.apache.spark.sql.execution.QueryExecution$$anonfun$$nestedInanonfun$eagerlyExecuteCommands$1$1.applyOrElse(QueryExecution.scala:239)
at org.apache.spark.sql.execution.QueryExecution$$anonfun$$nestedInanonfun$eagerlyExecuteCommands$1$1.applyOrElse(QueryExecution.scala:232)
at org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$transformDownWithPruning$1(TreeNode.scala:512)
at org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:99)
at org.apache.spark.sql.catalyst.trees.TreeNode.transformDownWithPruning(TreeNode.scala:512)
at org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.org$apache$spark$sql$catalyst$plans$logical$AnalysisHelper$$super$transformDownWithPruning(LogicalPlan.scala:31)
at org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.transformDownWithPruning(AnalysisHelper.scala:268)
at org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.transformDownWithPruning$(AnalysisHelper.scala:264)
at org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.transformDownWithPruning(LogicalPlan.scala:31)
at org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.transformDownWithPruning(LogicalPlan.scala:31)
at org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:488)
at org.apache.spark.sql.execution.QueryExecution.$anonfun$eagerlyExecuteCommands$1(QueryExecution.scala:232)
at org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper$.allowInvokingTransformsInAnalyzer(AnalysisHelper.scala:324)
at org.apache.spark.sql.execution.QueryExecution.eagerlyExecuteCommands(QueryExecution.scala:232)
at org.apache.spark.sql.execution.QueryExecution.commandExecuted$lzycompute(QueryExecution.scala:186)
at org.apache.spark.sql.execution.QueryExecution.commandExecuted(QueryExecution.scala:177)
at org.apache.spark.sql.Dataset.<init>(Dataset.scala:238)
at org.apache.spark.sql.Dataset$.$anonfun$ofRows$2(Dataset.scala:107)
at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:985)
at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:104)
at org.apache.spark.sql.SparkSession.$anonfun$sql$1(SparkSession.scala:820)
at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:985)
at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:815)
at org.apache.spark.sql.SQLContext.sql(SQLContext.scala:695)
at com.databricks.backend.daemon.driver.SQLDriverLocal.$anonfun$executeSql$1(SQLDriverLocal.scala:91)
at scala.collection.immutable.List.map(List.scala:293)
at com.databricks.backend.daemon.driver.SQLDriverLocal.executeSql(SQLDriverLocal.scala:37)
at com.databricks.backend.daemon.driver.SQLDriverLocal.repl(SQLDriverLocal.scala:145)
at com.databricks.backend.daemon.driver.DriverLocal.$anonfun$execute$23(DriverLocal.scala:728)
at com.databricks.unity.UCSEphemeralState$Handle.runWith(UCSEphemeralState.scala:41)
at com.databricks.unity.HandleImpl.runWith(UCSHandle.scala:99)
at com.databricks.backend.daemon.driver.DriverLocal.$anonfun$execute$20(DriverLocal.scala:711)
at com.databricks.logging.UsageLogging.$anonfun$withAttributionContext$1(UsageLogging.scala:398)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:62)
at com.databricks.logging.AttributionContext$.withValue(AttributionContext.scala:147)
at com.databricks.logging.UsageLogging.withAttributionContext(UsageLogging.scala:396)
at com.databricks.logging.UsageLogging.withAttributionContext$(UsageLogging.scala:393)
at com.databricks.backend.daemon.driver.DriverLocal.withAttributionContext(DriverLocal.scala:62)
at com.databricks.logging.UsageLogging.withAttributionTags(UsageLogging.scala:441)
at com.databricks.logging.UsageLogging.withAttributionTags$(UsageLogging.scala:426)
at com.databricks.backend.daemon.driver.DriverLocal.withAttributionTags(DriverLocal.scala:62)
at com.databricks.backend.daemon.driver.DriverLocal.execute(DriverLocal.scala:688)
at com.databricks.backend.daemon.driver.DriverWrapper.$anonfun$tryExecutingCommand$1(DriverWrapper.scala:622)
at scala.util.Try$.apply(Try.scala:213)
at com.databricks.backend.daemon.driver.DriverWrapper.tryExecutingCommand(DriverWrapper.scala:614)
at com.databricks.backend.daemon.driver.DriverWrapper.executeCommandAndGetError(DriverWrapper.scala:533)
at com.databricks.backend.daemon.driver.DriverWrapper.executeCommand(DriverWrapper.scala:568)
at com.databricks.backend.daemon.driver.DriverWrapper.runInnerLoop(DriverWrapper.scala:438)
at com.databricks.backend.daemon.driver.DriverWrapper.runInner(DriverWrapper.scala:381)
at com.databricks.backend.daemon.driver.DriverWrapper.run(DriverWrapper.scala:232)
at java.lang.Thread.run(Thread.java:750)
