GitHub user bhavya411 opened a pull request:

    https://github.com/apache/carbondata/pull/2265

    Added Performance Optimization for Presto by using MultiBlockSplit

    This PR deals with the changes in performance of Presto Integration layer, 
the major changes are
    - Introducing CarbonMultiBlockSplit to reduce the Network Latency
    - Added Query Statistics support in Presto
    - Optimized DecimalStreamReader
    - Added log4j.properties to get the logs output on console
    - Optimized pom.xml to remove unnecessary stuff and duplicate dependencies
    
     - [X ] Any interfaces changed?
     
     - [ X] Any backward compatibility impacted?
     
     - [ X] Document update required?
    
     - [ Y] Testing done
         We have run the Queries on local environment and there is an 
improvement in the performance
           
     - [ N] For large changes, please consider breaking it into sub-tasks under 
an umbrella JIRA. 
    


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

    $ git pull https://github.com/bhavya411/incubator-carbondata UnsafeCode

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

    https://github.com/apache/carbondata/pull/2265.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 #2265
    
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commit 9822c4dbfe46dc21f698d0b9d52b64e29dbfbe7a
Author: Bhavya <bhavya@...>
Date:   2018-04-16T06:24:17Z

    Added Performance Optimization for Presto by using MultiBlockSplit

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