[
https://issues.apache.org/jira/browse/SPARK-20730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009051#comment-16009051
]
Apache Spark commented on SPARK-20730:
--------------------------------------
User 'maropu' has created a pull request for this issue:
https://github.com/apache/spark/pull/17970
> Add a new Optimizer rule to combine nested Concats
> --------------------------------------------------
>
> Key: SPARK-20730
> URL: https://issues.apache.org/jira/browse/SPARK-20730
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.1.1
> Reporter: Takeshi Yamamuro
>
> The master supports a pipeline operator '||' to concatenate strings. Since
> the parser generates nested Concat expressions, the optimizer needs to
> combine the nested expressions.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
