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https://issues.apache.org/jira/browse/SPARK-27096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-27096.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 23982
[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
> Assignee: Dilip Biswal
> Priority: Minor
> Fix For: 3.0.0
>
>
> 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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