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https://issues.apache.org/jira/browse/IMPALA-3063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16461827#comment-16461827
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Alexander Behm commented on IMPALA-3063:
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Some variants of this bug are not fixed by this commit. See: IMPALA-5689
> NotImplementedException: ... RIGHT OUTER JOIN ... can only be executed with a
> single node plan
> ----------------------------------------------------------------------------------------------
>
> Key: IMPALA-3063
> URL: https://issues.apache.org/jira/browse/IMPALA-3063
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Affects Versions: Impala 2.5.0, Impala 2.6.0
> Reporter: casey
> Assignee: Alexander Behm
> Priority: Blocker
> Labels: regression
> Fix For: Impala 2.7.0
>
>
> Please see below.
> {noformat}
> Query: select 1
> FROM alltypes a1
> LEFT JOIN alltypes a2 ON a2.tinyint_col >= 1
> ERROR: NotImplementedException: Error generating a valid execution plan for
> this query. A RIGHT OUTER JOIN type with no equi-join predicates can only be
> executed with a single node plan.
> {noformat}
> The error message must be referencing some rewritten version of the query?
> The original query has no RIGHT OUTER JOIN.
> Also the message references "single node plan" which users may not understand.
> What's worse is if you "SET NUM_NODES=1" there is a dcheck. I'll file a
> separate issue about that.
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