[
https://issues.apache.org/jira/browse/SPARK-25829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16663539#comment-16663539
]
Liang-Chi Hsieh commented on SPARK-25829:
-----------------------------------------
Although I think the inconsistent handling exists for a while, if we decide
"later entry wins" and revert some functions from 2.4, will this be a blocker
for 2.4?
> Duplicated map keys are not handled consistently
> ------------------------------------------------
>
> Key: SPARK-25829
> URL: https://issues.apache.org/jira/browse/SPARK-25829
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Wenchen Fan
> Priority: Major
>
> In Spark SQL, we apply "earlier entry wins" semantic to duplicated map keys.
> e.g.
> {code}
> scala> sql("SELECT map(1,2,1,3)[1]").show
> +------------------+
> |map(1, 2, 1, 3)[1]|
> +------------------+
> | 2|
> +------------------+
> {code}
> However, this handling is not applied consistently.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
