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From rathijit <...@git.apache.org>
Subject [GitHub] incubator-quickstep pull request #90: Quickstep 28 29
Date Wed, 10 Aug 2016 22:04:57 GMT
GitHub user rathijit opened a pull request:


    Quickstep 28 29

    More efficient handling of aggregations by having a combined payload in the hash table.
This also removes ValueT parametrization for the hash table data structure. Please refer to
JIRA tickets QUICKSTEP-28 and QUICKSTEP-29 for more details.
    TPC-H query 01 sees significant performance improvements with these changes.
    Currently, only SeparateChaining hash table type is supported.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/apache/incubator-quickstep quickstep-28-29

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #90
commit 39485d620402273890e92072e05f856fd9da7f9d
Author: rathijit <rathijit@node-2.hashtable.quickstep-pg0.wisc.cloudlab.us>
Date:   2016-07-04T07:44:48Z

    Initial commit for QUICKSTEP-28 and QUICKSTEP-29. Code refactoring and cleanup, some more
optimizations are pending.

commit d9c9e6867d3cbd6ed6209e944a2b7d91748e40d3
Author: rathijit <rathijit@node-2.aggregation.quickstep-pg0.wisc.cloudlab.us>
Date:   2016-08-05T11:00:12Z

    Fixed 4 failures on unit tests


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