You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Maciej Szymkiewicz (JIRA)" <ji...@apache.org> on 2015/12/29 21:50:49 UTC
[jira] [Commented] (SPARK-6459) Warn when Column API is
constructing trivially true equality
[ https://issues.apache.org/jira/browse/SPARK-6459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15074268#comment-15074268 ]
Maciej Szymkiewicz commented on SPARK-6459:
-------------------------------------------
[~marmbrus] Isn't this warning obsolete in 1.5+?
> Warn when Column API is constructing trivially true equality
> ------------------------------------------------------------
>
> Key: SPARK-6459
> URL: https://issues.apache.org/jira/browse/SPARK-6459
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.3.0
> Reporter: Michael Armbrust
> Assignee: Michael Armbrust
> Priority: Critical
> Fix For: 1.3.1, 1.4.0
>
>
> Right now its pretty confusing when a user constructs and equality predicate that is going to be use in a self join, where the optimizer cannot distinguish between the attributes in question (e.g., [SPARK-6231]). Since there is really no good reason to do this, lets print a warning.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org