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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/06/10 02:10:18 UTC
[jira] [Assigned] (SPARK-21041) With whole-stage codegen,
SparkSession.range()'s behavior is inconsistent with SparkContext.range()
[ https://issues.apache.org/jira/browse/SPARK-21041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-21041:
------------------------------------
Assignee: Apache Spark
> With whole-stage codegen, SparkSession.range()'s behavior is inconsistent with SparkContext.range()
> ---------------------------------------------------------------------------------------------------
>
> Key: SPARK-21041
> URL: https://issues.apache.org/jira/browse/SPARK-21041
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.2, 2.1.1, 2.2.0
> Reporter: Kris Mok
> Assignee: Apache Spark
>
> When whole-stage codegen is enabled, in face of integer overflow, SparkSession.range()'s behavior is inconsistent with when codegen is turned off, while the latter is consistent with SparkContext.range()'s behavior.
> The following Spark Shell session shows the inconsistency:
> {code:java}
> scala> sc.range
> def range(start: Long,end: Long,step: Long,numSlices: Int): org.apache.spark.rdd.RDD[Long]
> scala> spark.range
>
> def range(start: Long,end: Long,step: Long,numPartitions: Int): org.apache.spark.sql.Dataset[Long]
> def range(start: Long,end: Long,step: Long): org.apache.spark.sql.Dataset[Long]
> def range(start: Long,end: Long): org.apache.spark.sql.Dataset[Long]
> def range(end: Long): org.apache.spark.sql.Dataset[Long]
> scala> sc.range(java.lang.Long.MAX_VALUE - 3, java.lang.Long.MIN_VALUE + 2, 1).collect
> res1: Array[Long] = Array()
> scala> spark.range(java.lang.Long.MAX_VALUE - 3, java.lang.Long.MIN_VALUE + 2, 1).collect
> res2: Array[Long] = Array(9223372036854775804, 9223372036854775805, 9223372036854775806)
> scala> spark.conf.set("spark.sql.codegen.wholeStage", false)
> scala> spark.range(java.lang.Long.MAX_VALUE - 3, java.lang.Long.MIN_VALUE + 2, 1).collect
> res5: Array[Long] = Array()
> {code}
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