Paul Rogers has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/12248 )

Change subject: IMPALA-8095: Detailed expression cardinality tests
......................................................................


Patch Set 7:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/12248/7/fe/src/test/java/org/apache/impala/analysis/ExprCardinalityTest.java
File fe/src/test/java/org/apache/impala/analysis/ExprCardinalityTest.java:

http://gerrit.cloudera.org:8080/#/c/12248/7/fe/src/test/java/org/apache/impala/analysis/ExprCardinalityTest.java@122
PS7, Line 122:    // Bug: NDV of partition columns is -1 though it is listed as
             :     // 2 in the shell with: SHOW COLUMN STATS alltypes
             :     //verifyTableCol(allTypes, "year", 2, 0);
             :     // Bug: When tests are run in Eclipse we get the result 
above.
             :     // But, when the same test is run using maven from the 
command line,
             :     // we get the result shown below.
             :     // Unit test in Eclipse see the above, unit tests run from 
the
             :     // Disabling both to avoid a flaky test,
             :     // Same issue for the next three tests.
             :     //verifyTableCol(allTypes, "year", -1, -1);
             :     //verifyTableCol(allTypes, "month", 12, 0);
             :     //verifyTableCol(allTypes, "month", -1, -1);
> (This and multiple places below)
We should. We should also dig into the many bugs here.

That said, the purpose of this patch is to create the test baseline, pointing 
out the many things to fix, including this one.

OK to create the baseline first, then do the fixes as separate patches?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I3da58ee9b0beebeffb170b9430bd36d20dcd2401
Gerrit-Change-Number: 12248
Gerrit-PatchSet: 7
Gerrit-Owner: Paul Rogers <prog...@cloudera.com>
Gerrit-Reviewer: Bharath Vissapragada <bhara...@cloudera.com>
Gerrit-Reviewer: Fredy Wijaya <fwij...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Paul Rogers <prog...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Comment-Date: Fri, 08 Feb 2019 22:30:38 +0000
Gerrit-HasComments: Yes

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