[
https://issues.apache.org/jira/browse/SPARK-29626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359900#comment-17359900
]
dc-heros commented on SPARK-29626:
----------------------------------
[~cloud_fan] could you give your opinion?
> notEqual() should return true when the one is null, the other is not null
> -------------------------------------------------------------------------
>
> Key: SPARK-29626
> URL: https://issues.apache.org/jira/browse/SPARK-29626
> Project: Spark
> Issue Type: Improvement
> Components: Documentation
> Affects Versions: 3.1.0
> Reporter: zhouhuazheng
> Priority: Minor
>
> the one is null，the other is not null, then use the function notEqual(), we
> hope it return true .
> eg:
> scala> df.show()
> +------+-------+
> | age| name|
> +------+-------+
> | null|Michael|
> | 30| Andy|
> | 19| Justin|
> | 35| null|
> | 19| Justin|
> | null| null|
> |Justin| Justin|
> | 19| 19|
> +------+-------+
> scala> df.filter(col("age").notEqual(col("name"))).show
> +---+------+
> |age| name|
> +---+------+
> | 30| Andy|
> | 19|Justin|
> | 19|Justin|
> +---+------+
> scala> df.filter(col("age").equalTo(col("name"))).show
> +------+------+
> | age| name|
> +------+------+
> | null| null|
> |Justin|Justin|
> | 19| 19|
> +------+------+
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
