[jira] [Updated] (SPARK-28186) array_contains returns null instead of false when one of the items in the array is null

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-28186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon updated SPARK-28186:
---------------------------------
    Description: 
If array of items contains a null item then {{array_contains}} returns {{true}} if item is found but if item is not found it returns {{null}} instead of {{false}}

{code}
Seq(
  (1, Seq("a", "b", "c")),
  (2, Seq("a", "b", null, "c"))
).toDF("id", "vals").createOrReplaceTempView("tbl")
spark.sql("select id, vals, array_contains(vals, 'a') as has_a, array_contains(vals, 'd') as has_d from tbl").show
{code}

{code}
+---+----------+-----+-----+
| id|      vals|has_a|has_d|
+---+----------+-----+-----+
|  1| [a, b, c]| true|false|
|  2|[a, b,, c]| true| null|
+---+----------+-----+-----+
{code}


  was:
If array of items contains a null item then {{array_contains}} returns {{true}} if item is found but if item is not found it returns {{null}} instead of {{false}}

{code}
Seq(
  (1, Seq("a", "b", "c")),
  (2, Seq("a", "b", null, "c"))
).toDF("id", "vals").createOrReplaceTempView("tbl")
spark.sql("select id, vals, array_contains(vals, 'a') as has_a, array_contains(vals, 'd') as has_d from tbl").show
{code}

{code}
+----+---------++----------+
|id|vals|has_a|has_d|
+----+---------++----------+
|1|[a, b, c]|true|false|
|2|[a, b,, c]|true|null|
+----+---------++----------+
{code}



> array_contains returns null instead of false when one of the items in the array is null
> ---------------------------------------------------------------------------------------
>
>                 Key: SPARK-28186
>                 URL: https://issues.apache.org/jira/browse/SPARK-28186
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Alex Kushnir
>            Priority: Major
>
> If array of items contains a null item then {{array_contains}} returns {{true}} if item is found but if item is not found it returns {{null}} instead of {{false}}
> {code}
> Seq(
>   (1, Seq("a", "b", "c")),
>   (2, Seq("a", "b", null, "c"))
> ).toDF("id", "vals").createOrReplaceTempView("tbl")
> spark.sql("select id, vals, array_contains(vals, 'a') as has_a, array_contains(vals, 'd') as has_d from tbl").show
> {code}
> {code}
> +---+----------+-----+-----+
> | id|      vals|has_a|has_d|
> +---+----------+-----+-----+
> |  1| [a, b, c]| true|false|
> |  2|[a, b,, c]| true| null|
> +---+----------+-----+-----+
> {code}



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