Bharath Vissapragada has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/12136 )

Change subject: IMPALA-8021: Add estimated cardinality to EXPLAIN output
......................................................................


Patch Set 12:

(4 comments)

lgtm, just a few nits. Also there are some warnings from clang-tidy bot that 
you might want to fix.

http://gerrit.cloudera.org:8080/#/c/12136/12/fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java
File fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java:

http://gerrit.cloudera.org:8080/#/c/12136/12/fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java@1230
PS12, Line 1230:           .append(String.format("partition predicates: %s\n",
Looks like Greg had a different opinion on the jira when I mentioned separating 
the two sets of conjuncts. Appears he is not strong though.


http://gerrit.cloudera.org:8080/#/c/12136/12/fe/src/main/java/org/apache/impala/planner/SingleNodePlanner.java
File fe/src/main/java/org/apache/impala/planner/SingleNodePlanner.java:

http://gerrit.cloudera.org:8080/#/c/12136/12/fe/src/main/java/org/apache/impala/planner/SingleNodePlanner.java@1331
PS12, Line 1331: scanNode.setPartitionConjuncts(pair.second);
nit: Can we force this in the c'tor above? Setting it separately seems weird.


http://gerrit.cloudera.org:8080/#/c/12136/12/fe/src/test/java/org/apache/impala/testutil/TestUtils.java
File fe/src/test/java/org/apache/impala/testutil/TestUtils.java:

http://gerrit.cloudera.org:8080/#/c/12136/12/fe/src/test/java/org/apache/impala/testutil/TestUtils.java@207
PS12, Line 207:  If found, then parse the values and compare them. Report a 
match
              :    * if the values are within 5%, else report a mismatch.
Is this because of the loss of information during pretty printing and then 
decoding it back? If so, probably worth mentioning it.


http://gerrit.cloudera.org:8080/#/c/12136/12/fe/src/test/java/org/apache/impala/testutil/TestUtils.java@226
PS12, Line 226: SKIP
you mean DIFF? (same below)



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ie9aa2d715b04cbb279aaffec8c5692686562d986
Gerrit-Change-Number: 12136
Gerrit-PatchSet: 12
Gerrit-Owner: Paul Rogers <prog...@cloudera.com>
Gerrit-Reviewer: Bharath Vissapragada <bhara...@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: Sat, 05 Jan 2019 00:35:13 +0000
Gerrit-HasComments: Yes

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