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https://issues.apache.org/jira/browse/IGNITE-9732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16632529#comment-16632529
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Valentin Kulichenko commented on IGNITE-9732:
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[~vozerov], moved to 2.8
> Add joins to Spark Dataframe examples
> -------------------------------------
>
> Key: IGNITE-9732
> URL: https://issues.apache.org/jira/browse/IGNITE-9732
> Project: Ignite
> Issue Type: Improvement
> Components: examples, spark
> Affects Versions: 2.6
> Reporter: Valentin Kulichenko
> Priority: Major
> Fix For: 2.8
>
>
> {{IgniteDataFrameExample}} creates two tables - {{city}} and {{person}}, but
> only {{person}} is actually used. Need to add join examples.
> Would also be great to demonstrate the fact that optimization is working and
> joins are executed in Ignite, not Spark (using {{explain()}}, maybe?).
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