Alex Behm has posted comments on this change.

Change subject: IMPALA-5211: Simplifying ifnull/isnull/nvl where conditional is 
a literal.
......................................................................


Patch Set 6:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/7781/6/testdata/workloads/functional-planner/queries/PlannerTest/simplify-expressions.test
File 
testdata/workloads/functional-planner/queries/PlannerTest/simplify-expressions.test:

Line 1: # ifnull simplified out because first argument is constant.
> My bad
No worries. Just to explain: Planner tests change very often, mostly for 
reasons unrelated to the purpose of the original test. So it becomes 
increasingly harder to make planner changes because a ton of tests need to be 
examined and updated.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I9e4b8bf6fedd595f9ea54ffb30fc71a058c7f16c
Gerrit-PatchSet: 6
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Philip Zeyliger <[email protected]>
Gerrit-Reviewer: Alex Behm <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Henry Robinson <[email protected]>
Gerrit-Reviewer: Matthew Jacobs <[email protected]>
Gerrit-Reviewer: Philip Zeyliger <[email protected]>
Gerrit-HasComments: Yes

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