GitHub user cramja opened a pull request:

    https://github.com/apache/incubator-quickstep/pull/100

    Refactor bulk insert for SplitRowStore

    This code refactors out multiple calls to the catalog in tight insert loops.
    
    We see a 2x improvement on large inserts.

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

    $ git pull https://github.com/cramja/incubator-quickstep refactor_bulk_ins

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

    https://github.com/apache/incubator-quickstep/pull/100.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 #100
    
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commit 29ebdae0e6218e9b8a3e3df2b056c6f62d598529
Author: cramja <marc.spehlm...@gmail.com>
Date:   2016-09-16T21:35:19Z

    BulkInsert optimization for SplitRowStore
    
    This change adds a struct which holds the calculations for insert
    information for tuples coming from a value accessor and being inserted
    into a splitrowstore tuple block. This greatly speeds up highly
    unselective queries.

commit 57bd3e893b564327d7204039b479d04fa385738e
Author: cramja <marc.spehlm...@gmail.com>
Date:   2016-09-16T23:19:16Z

    Adds insert optimization to bulkInsertWithRemappedAttributes
    
    Similar (copy+paste with one addition) to the last change to the
    SplitRowStore.

commit 47a1a4b62a12a3e74f6f687d75180f935e2b965c
Author: cramja <marc.spehlm...@gmail.com>
Date:   2016-09-20T01:22:41Z

    Removes duplicate code in bulkInsert
    
    This refactor is meant to remove code complexity via removing duplicate
    code. Prefer cleaner/more maintainable code over a slightly faster 
algorithm.

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