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From hbdeshmukh <...@git.apache.org>
Subject [GitHub] incubator-quickstep pull request #325: DO NOT MERGE: Concurrent queries tran...
Date Thu, 23 Nov 2017 17:09:49 GMT
GitHub user hbdeshmukh opened a pull request:

    https://github.com/apache/incubator-quickstep/pull/325

    DO NOT MERGE: Concurrent queries transactions

    Hello,
    
    This PR has some skeleton code for basic transactional queries support in quickstep. This
PR follows the design proposed in the presentation attached with https://issues.apache.org/jira/browse/QUICKSTEP-107.



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

    $ git pull https://github.com/hbdeshmukh/incubator-quickstep concurrent-queries-transactions

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

    https://github.com/apache/incubator-quickstep/pull/325.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 #325
    
----
commit 18692dbb6d6679aab89e503d388a5fc57889e811
Author: Harshad Deshmukh <hbdeshmukh@apache.org>
Date:   2017-11-16T16:27:28Z

    Initial commit for APIs
    
    - CompatabilityChecker base class in transaction checks the
      compatability of an incoming transaction with other running
      transactions.
    - AdmissionControl base class decides whether to admit or waitlist an
      incoming transaction.
    - QueryHandle class provides a method to list all the base relations
      referenced in a transaction.

commit 8f94489a8403c91110b454c7f93306d6c5d8fc57
Author: Harshad Deshmukh <hbdeshmukh@apache.org>
Date:   2017-11-20T17:02:33Z

    Added more APIs to acquire locks
    
    - Locks can be on CatalogRelation as well as individual blocks.

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