Ram Sriharsha created SPARK-10623:
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Summary: turning on predicate pushdown throws nonsuch element
exception when RDD is empty
Key: SPARK-10623
URL: https://issues.apache.org/jira/browse/SPARK-10623
Project: Spark
Issue Type: Bug
Reporter: Ram Sriharsha
Turning on predicate pushdown for ORC datasources results in a
NoSuchElementException:
scala> val df = sqlContext.sql("SELECT name FROM people WHERE age < 15")
df: org.apache.spark.sql.DataFrame = [name: string]
scala> sqlContext.setConf("spark.sql.orc.filterPushdown", "true")
scala> df.explain
== Physical Plan ==
java.util.NoSuchElementException
Disabling the pushdown makes things work again:
scala> sqlContext.setConf("spark.sql.orc.filterPushdown", "false")
scala> df.explain
== Physical Plan ==
Project [name#6]
Filter (age#7 < 15)
Scan
OrcRelation[file:/home/mydir/spark-1.5.0-SNAPSHOT/test/people][name#6,age#7]
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