[jira] [Commented] (SPARK-28033) String concatenation should low priority than other operators

["Takeshi Yamamuro (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-28033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17004744#comment-17004744 ] 

Takeshi Yamamuro commented on SPARK-28033:
------------------------------------------

I'll close this because the corresponding pr has been closed. If necessary, please reopen this.

> String concatenation should low priority than other operators
> -------------------------------------------------------------
>
>                 Key: SPARK-28033
>                 URL: https://issues.apache.org/jira/browse/SPARK-28033
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.3.3
>            Reporter: Yuming Wang
>            Priority: Major
>
> Spark SQL:
> {code:sql}
> spark-sql> explain select 'four: ' || 2 + 2;
> == Physical Plan ==
> *(1) Project [null AS (CAST(concat(four: , CAST(2 AS STRING)) AS DOUBLE) + CAST(2 AS DOUBLE))#2]
> +- Scan OneRowRelation[]
> spark-sql> select 'four: ' || 2 + 2;
> NULL
> {code}
> Hive:
> {code:sql}
> hive> select 'four: ' || 2 + 2;
> OK
> four: 4
> {code}



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