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java.util.NoSuchElementException: head of empty list at scala.collection.immutable.Nil$.head(List.scala:337) at scala.collection.immutable.Nil$.head(List.scala:334) at org.apache.spark.sql.cassandra.CassandraStrategies$CassandraTableScans$$anonfun$partitionColumnPushDown$1.apply(CassandraStrategies.scala:76) at org.apache.spark.sql.cassandra.CassandraStrategies$CassandraTableScans$$anonfun$partitionColumnPushDown$1.apply(CassandraStrategies.scala:75) at scala.collection.immutable.List.foreach(List.scala:318) at org.apache.spark.sql.cassandra.CassandraStrategies$CassandraTableScans$.partitionColumnPushDown(CassandraStrategies.scala:75) at org.apache.spark.sql.cassandra.CassandraStrategies$CassandraTableScans$.apply(CassandraStrategies.scala:203) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$1.apply(QueryPlanner.scala:58) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$1.apply(QueryPlanner.scala:58) at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371) at org.apache.spark.sql.catalyst.planning.QueryPlanner.apply(QueryPlanner.scala:59) at org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan$lzycompute(SQLContext.scala:407) at org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan(SQLContext.scala:405) at org.apache.spark.sql.SQLContext$QueryExecution.executedPlan$lzycompute(SQLContext.scala:411) at org.apache.spark.sql.SQLContext$QueryExecution.executedPlan(SQLContext.scala:411) at org.apache.spark.sql.SchemaRDD.collect(SchemaRDD.scala:438) at org.apache.spark.sql.SchemaRDD.collect(SchemaRDD.scala:103) at org.apache.spark.rdd.RDD.toArray(RDD.scala:794) at com.esri.scala.TestCassandraSQL$.main(TestCassandraSQL.scala:18) at com.esri.scala.TestCassandraSQL.main(TestCassandraSQL.scala)