[jira] [Created] (SPARK-10999) Physical plan node Coalesce should be able to handle UnsafeRow

["Cheng Lian (JIRA)" <ji...@apache.org>]

Cheng Lian created SPARK-10999:
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             Summary: Physical plan node Coalesce should be able to handle UnsafeRow
                 Key: SPARK-10999
                 URL: https://issues.apache.org/jira/browse/SPARK-10999
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 1.6.0
            Reporter: Cheng Lian
            Assignee: Cheng Lian
            Priority: Minor


The following PySpark snippet shows the problem:
{noformat}
>>> sqlContext.range(10).selectExpr('id AS a').coalesce(1).explain(True)
...
== Physical Plan ==
Coalesce 1
 ConvertToSafe
  TungstenProject [id#3L AS a#4L]
   Scan PhysicalRDD[id#3L]
{noformat}
The {{ConvertToSafe}} is unnecessary.



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