Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/11528 )

Change subject: IMPALA-3710: All-null columns give wrong estimates in planner 
Modified the planner to handle low-value NDVs by adjusting them upward by one 
to account for null values. Thus, even an all-null column, which has an NDV of 
0 in stats, will have an NDV of 1 in
......................................................................


Patch Set 3:

Build Failed

https://jenkins.impala.io/job/gerrit-code-review-checks/847/ : Initial code 
review checks failed. See linked job for details on the failure.


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ife657a43c9cafc451bd12ddf857dcb7169e97459
Gerrit-Change-Number: 11528
Gerrit-PatchSet: 3
Gerrit-Owner: Paul Rogers <par0...@yahoo.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Comment-Date: Thu, 27 Sep 2018 18:50:47 +0000
Gerrit-HasComments: No

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