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Posted to dev@quickstep.apache.org by jianqiao <gi...@git.apache.org> on 2017/02/24 17:13:24 UTC
[GitHub] incubator-quickstep pull request #193: Use partitioned aggregation for singl...
GitHub user jianqiao opened a pull request:
https://github.com/apache/incubator-quickstep/pull/193
Use partitioned aggregation for single-function DISTINCT aggregation.
This PR uses the partitioned aggregation routine for parallelizing DISTINCT aggregation. It improves the performance of TPC-H Q16 from ~10s to ~2s with scale factor 100 on CloudLab machine.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/apache/incubator-quickstep parallel-distinct-agg
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-quickstep/pull/193.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 #193
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[GitHub] incubator-quickstep issue #193: Use partitioned aggregation for single-funct...
Posted by zuyu <gi...@git.apache.org>.
Github user zuyu commented on the issue:
https://github.com/apache/incubator-quickstep/pull/193
@jianqiao Please fix the build failures using gcc. See [here](https://travis-ci.org/apache/incubator-quickstep/builds/205062637) for more info.
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[GitHub] incubator-quickstep issue #193: Use partitioned aggregation for single-funct...
Posted by hakanmemisoglu <gi...@git.apache.org>.
Github user hakanmemisoglu commented on the issue:
https://github.com/apache/incubator-quickstep/pull/193
Looks good to me. I am merging with master.
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[GitHub] incubator-quickstep pull request #193: Use partitioned aggregation for singl...
Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:
https://github.com/apache/incubator-quickstep/pull/193
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