Tim Armstrong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/15278 )

Change subject: IMPALA-7784: Use unescaped string in partition pruning + fix 
duplicatedly unescaping strings
......................................................................


Patch Set 3:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/15278/3/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/15278/3/fe/src/main/java/org/apache/impala/analysis/StringLiteral.java@71
PS3, Line 71:   // TODO: should we consider needsUnescaping_ in hashing?
> tl;dr: I think that we are ok
I know that HashMap<Expr> is avoided for exactly this reason. The expression 
substitution maps are implemented using linear search over arrays of exprs.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Iea8070f16a74f9aeade294504f2834abb8b3b38f
Gerrit-Change-Number: 15278
Gerrit-PatchSet: 3
Gerrit-Owner: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Vihang Karajgaonkar <[email protected]>
Gerrit-Comment-Date: Mon, 24 Feb 2020 17:42:29 +0000
Gerrit-HasComments: Yes

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