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https://issues.apache.org/jira/browse/IMPALA-8137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16758592#comment-16758592
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ASF subversion and git services commented on IMPALA-8137:
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Commit 6291d6063fe4ff9c483b60b8d9fc254298a51473 in impala's branch
refs/heads/master from Alex Rodoni
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=6291d60 ]
IMPALA-8137: [DOCS] Order By does not happens on one node
Change-Id: If8d7bf26fffaf93982e67f8bc8f37742c81fda39
Reviewed-on: http://gerrit.cloudera.org:8080/12330
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Tim Armstrong <[email protected]>
> Order by docs incorrectly state that order by happens on one node
> -----------------------------------------------------------------
>
> Key: IMPALA-8137
> URL: https://issues.apache.org/jira/browse/IMPALA-8137
> Project: IMPALA
> Issue Type: Bug
> Components: Docs
> Reporter: Tim Armstrong
> Assignee: Alex Rodoni
> Priority: Major
>
> https://impala.apache.org/docs/build/html/topics/impala_order_by.html
> "because the entire result set must be produced and transferred to one node
> before the sorting can happen." is incorrect. If there is an "ORDER BY"
> clause in a select block, then first data is sorted locally by each impala
> daemon, then streamed to the coordinator, which merges the sorted result sets.
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