[jira] [Assigned] (SPARK-14990) nvl, coalesce, array functions with parameter of type "array"

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-14990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-14990:
------------------------------------

    Assignee:     (was: Apache Spark)

> nvl, coalesce, array functions with parameter of type "array"
> -------------------------------------------------------------
>
>                 Key: SPARK-14990
>                 URL: https://issues.apache.org/jira/browse/SPARK-14990
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.6.1
>            Reporter: Oleg Danilov
>            Priority: Minor
>
> Steps to reproduce:
> 1. create table tmp(col1 int, col2 array<int>)
> 2. insert values:
> {code}
>   1, [1]
>   2, [2]
>   3, NULL
> {code}
> 3. run query 
> select col1, coalesce(col2, array(1,2,3)) from tmp;
> Expected result:
> {code}
> 1, [1]
> 2, [2]
> 3, [1,2,3]
> {code}
> Current result:
> {code}
> Error: org.apache.spark.sql.AnalysisException: cannot resolve 'coalesce(col2,array(1,2,3))' due to data type mismatch: input to function coalesce should all be the same type, but it's [array<int>, array<int>]; line 1 pos 38 (state=,code=0)
> {code}
> The fix seems to be pretty easy, will create a PR soon.



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