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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2019/03/08 00:27:00 UTC
[jira] [Commented] (SPARK-27096) Reconcile the join type support
between data frame and sql interface
[ https://issues.apache.org/jira/browse/SPARK-27096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16787358#comment-16787358 ]
Apache Spark commented on SPARK-27096:
--------------------------------------
User 'dilipbiswal' has created a pull request for this issue:
https://github.com/apache/spark/pull/23982
> Reconcile the join type support between data frame and sql interface
> --------------------------------------------------------------------
>
> Key: SPARK-27096
> URL: https://issues.apache.org/jira/browse/SPARK-27096
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Dilip Biswal
> Priority: Minor
>
> Currently in the grammar file, we have the joinType rule defined as following :
> {code:java}
> joinType
> : INNER?
> ....
> ....
> | LEFT SEMI
> | LEFT? ANTI
> ;
> {code:java}
> {code}
> The keyword LEFT is optional for ANTI join even though its not optional for SEMI join. When
> using data frame interface join type "anti" is not allowed. The allowed types are "left_anti" or
> "leftanti" for anti joins. We should also make LEFT optional for SEMI join and allow "semi" and "anti" join types from data frame.
>
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