Dan Hecht has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/8623 )

Change subject: IMPALA-6187: Fix missing conjuncts evaluation with empty 
projection
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/8623/1/be/src/exec/hdfs-scanner.h
File be/src/exec/hdfs-scanner.h:

http://gerrit.cloudera.org:8080/#/c/8623/1/be/src/exec/hdfs-scanner.h@333
PS1, Line 333: If template tuple is not NULL
> Actually, reading the old code, we seem to leave those tuple ptrs alone so
Does the calloc hurt performance? Since the common case is not-null, why not 
use malloc and just remove the if (template_tuple_ != nullptr) check instead so 
we always set the pointers?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib530f1fdcd2c6de699977db163b3f6eb38481517
Gerrit-Change-Number: 8623
Gerrit-PatchSet: 1
Gerrit-Owner: Michael Ho <k...@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-Comment-Date: Tue, 28 Nov 2017 18:14:10 +0000
Gerrit-HasComments: Yes

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