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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/05/04 02:10:04 UTC
[jira] [Commented] (FLINK-5514) Implement an efficient physical
execution for CUBE/ROLLUP/GROUPING SETS
[ https://issues.apache.org/jira/browse/FLINK-5514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15996041#comment-15996041 ]
ASF GitHub Bot commented on FLINK-5514:
---------------------------------------
GitHub user godfreyhe opened a pull request:
https://github.com/apache/flink/pull/3818
[FLINK-5514] [table] Implement an efficient physical execution for CUBE/ROLLUP/GROUPING SETS
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/godfreyhe/flink FLINK-5514
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3818.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3818
----
commit fa876e41845b4d03bd896349e7a3539d278ccfdc
Author: godfreyhe <go...@163.com>
Date: 2017-05-04T02:08:04Z
[FLINK-5514] [table] Implement an efficient physical execution for CUBE/ROLLUP/GROUPING SETS
----
> Implement an efficient physical execution for CUBE/ROLLUP/GROUPING SETS
> -----------------------------------------------------------------------
>
> Key: FLINK-5514
> URL: https://issues.apache.org/jira/browse/FLINK-5514
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: godfrey he
>
> A first support for GROUPING SETS has been added in FLINK-5303. However, the current runtime implementation is not very efficient as it basically only translates logical operators to physical operators i.e. grouping sets are currently only translated into multiple groupings that are unioned together. A rough design document for this has been created in FLINK-2980.
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