Marcel Kornacker has posted comments on this change.

Change subject: IMPALA-4716: Expr rewrite causes IllegalStateException
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Patch Set 4:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/5631/4/fe/src/main/java/org/apache/impala/analysis/CaseExpr.java
File fe/src/main/java/org/apache/impala/analysis/CaseExpr.java:

Line 133:           children_.add(encodedIsNull.clone());
another one that was missed.

it looks like this is easy to break (in the future). please add a verification 
step at the end of this c'tor that checks that the expr tree rooted at 'this' 
doesn't contain encoded or encodedIsNull. extend TreeNode if you don't find a 
good functional match.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I4de9ed7118c8d18ec3f02ff74c9cca211c716e51
Gerrit-PatchSet: 4
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Thomas Tauber-Marshall <tmarsh...@cloudera.com>
Gerrit-Reviewer: Marcel Kornacker <mar...@cloudera.com>
Gerrit-Reviewer: Matthew Jacobs <m...@cloudera.com>
Gerrit-Reviewer: Thomas Tauber-Marshall <tmarsh...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
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