Adam Holley has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/10858 )

Change subject: IMPALA-7027: Mulitple varchar cast fails with distinct
......................................................................


Patch Set 1:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/10858/1/fe/src/main/java/org/apache/impala/analysis/StringLiteral.java
File fe/src/main/java/org/apache/impala/analysis/StringLiteral.java:

http://gerrit.cloudera.org:8080/#/c/10858/1/fe/src/main/java/org/apache/impala/analysis/StringLiteral.java@65
PS1, Line 65: (!(type_  == null ? that.type_ == null : type_ == that.type_))
> This condition is not very readable. It can be simplified to
That wouldn't catch the case where type_==null and that.type_ != null, which 
should also return false.  I'll remove the double space though.


http://gerrit.cloudera.org:8080/#/c/10858/1/fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java
File fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java:

http://gerrit.cloudera.org:8080/#/c/10858/1/fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java@151
PS1, Line 151:     AnalyzesOk("select distinct cast('' as varchar(101)) as a, " 
+
> Need additional test for "select distinct cast('' as varchar(100)) as a, ca
Done



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I2fa5890eaa89787645c7d3d2eef976f54a34e7c0
Gerrit-Change-Number: 10858
Gerrit-PatchSet: 1
Gerrit-Owner: Adam Holley <ahol...@cloudera.com>
Gerrit-Reviewer: Adam Holley <ahol...@cloudera.com>
Gerrit-Reviewer: Fredy Wijaya <fwij...@cloudera.com>
Gerrit-Comment-Date: Fri, 06 Jul 2018 15:25:47 +0000
Gerrit-HasComments: Yes

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