java.lang.AssertionError: assertion failed: No plan for NativeCommand DESCRIBE src
at scala.Predef$.assert(Predef.scala:179)
at org.apache.spark.sql.catalyst.planning.QueryPlanner.apply(QueryPlanner.scala:59)
at org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan$lzycompute(SQLContext.scala:302)
at org.apache.spark.sql.SQLContext$QueryExecution.sparkPlan(SQLContext.scala:302)
at org.apache.spark.sql.SQLContext$QueryExecution.executedPlan$lzycompute(SQLContext.scala:303)
at org.apache.spark.sql.SQLContext$QueryExecution.executedPlan(SQLContext.scala:303)
at org.apache.spark.sql.SchemaRDD.collect(SchemaRDD.scala:379)
at .<init>(<console>:40)
at .<clinit>(<console>)
at .<init>(<console>:7)
at .<clinit>(<console>)
at $print(<console>)