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https://issues.apache.org/jira/browse/IMPALA-4080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17045999#comment-17045999
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ASF subversion and git services commented on IMPALA-4080:
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Commit 1fde39db7ddc5528f032eadbcbb3f2cb255970f9 in impala's branch
refs/heads/master from Bikramjeet Vig
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=1fde39d ]
IMPALA-4080 [part 4]: Moved code responsible for codegen from select
and union's exec node to their plan node.
Refactored code responsible for codegen from select and union's exec
node to their plan node.
Testing:
Successfully ran exhaustive tests.
Manually verified that codegen works for all modified exec nodes.
Change-Id: I0610b93b9a13da19e35151b231349c0ab16071d2
Reviewed-on: http://gerrit.cloudera.org:8080/15285
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Share codegen work between fragment instances
> ---------------------------------------------
>
> Key: IMPALA-4080
> URL: https://issues.apache.org/jira/browse/IMPALA-4080
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 2.8.0
> Reporter: Tim Armstrong
> Assignee: Bikramjeet Vig
> Priority: Major
> Labels: codegen, multithreading
>
> With multithreading, we should find a way to share codegen modules between
> fragment instances to avoid redundant compilation, optimisation, etc.
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