[jira] [Created] (SPARK-12439) Fix toCatalystArray and MapObjects

["Liang-Chi Hsieh (JIRA)" <ji...@apache.org>]

Liang-Chi Hsieh created SPARK-12439:
---------------------------------------

             Summary: Fix toCatalystArray and MapObjects
                 Key: SPARK-12439
                 URL: https://issues.apache.org/jira/browse/SPARK-12439
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Liang-Chi Hsieh


In toCatalystArray, we should look at the data type returned by dataTypeFor instead of silentSchemaFor, to determine if the element is native type. An obvious problem is when the element is Option[Int] class, catalsilentSchemaFor will return Int, then we will wrongly recognize the element is native type.

There is another problem when using Option as array element. When we encode data like Seq(Some(1), Some(2), None) with encoder, we will use MapObjects to construct an array for it later. But in MapObjects, we don't check if the return value of lambdaFunction is null or not. That causes a bug that the decoded data for Seq(Some(1), Some(2), None) would be Seq(1, 2, -1), instead of Seq(1, 2, null).




--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org