Zach Amsden has posted comments on this change.

Change subject: IMPALA-4729: Implement REPLACE()
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Patch Set 5:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/5776/5/be/src/exprs/string-functions-ir.cc
File be/src/exprs/string-functions-ir.cc:

PS5, Line 266: UNLIKELY(check_space))
> Not sure if UNLIKELY() is really unlikely here. Isn't it dependent on the i
Well it was unlikely when I over-allocated the space.  Now it is still probably 
unlikely, since many replaces either will be stripping characters or replacing 
equal size strings.  Doesn't really matter much I suppose.  Should I remove it?


PS5, Line 273: DCHECK(
> DCHECK_EQ().
will fix.  originally was using math on the ptr val and DCHECK_EQ didn't like 
the types involved.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I1780a7d8fee6d0db9dad148217fb6eb10f773329
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Zach Amsden <zams...@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com>
Gerrit-Reviewer: Michael Ho <k...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Zach Amsden <zams...@cloudera.com>
Gerrit-HasComments: Yes

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