[GitHub] incubator-quickstep pull request #351: Use Exactness info in Catalog stats.

[zuyu <gi...@git.apache.org>]

GitHub user zuyu opened a pull request:

    https://github.com/apache/incubator-quickstep/pull/351

    Use Exactness info in Catalog stats.

    When we get stats info, we should not ignore the `exactness` flag.
    
    This PR checks the flag before answer whether a stat exists.

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

    $ git pull https://github.com/zuyu/incubator-quickstep use-exactness

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

    https://github.com/apache/incubator-quickstep/pull/351.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 #351
    
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commit cf37cf046d77ca98c19fab82c67ab8181a09d1ca
Author: Zuyu Zhang <zu...@...>
Date:   2018-05-05T15:24:37Z

    Use Exactness info in Catalog stats.

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[GitHub] incubator-quickstep pull request #351: Use Exactness info in Catalog stats.

[zuyu <gi...@git.apache.org>]

Github user zuyu closed the pull request at:

    https://github.com/apache/incubator-quickstep/pull/351


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[GitHub] incubator-quickstep issue #351: Use Exactness info in Catalog stats.

[hbdeshmukh <gi...@git.apache.org>]

Github user hbdeshmukh commented on the issue:

    https://github.com/apache/incubator-quickstep/pull/351
  
    I agree with Jianqiao. The plans may be a bit off when the stats are stale, however it is still better than not using the stats at all. 


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[GitHub] incubator-quickstep issue #351: Use Exactness info in Catalog stats.

[jianqiao <gi...@git.apache.org>]

Github user jianqiao commented on the issue:

    https://github.com/apache/incubator-quickstep/pull/351
  
    The stats can be used to provide an estimation even when they are not exact. 


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