Tim Armstrong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/12172 )

Change subject: IMPALA-7979: Enhance decoders to support value-skipping
......................................................................


Patch Set 3:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/12172/3/be/src/util/bit-stream-utils-test.cc
File be/src/util/bit-stream-utils-test.cc:

http://gerrit.cloudera.org:8080/#/c/12172/3/be/src/util/bit-stream-utils-test.cc@91
PS3, Line 91: void TestSkipping(const uint8_t* buffer, const int len, const int 
bit_width,
Might be worth adding a brief comment explaining the testing strategy, e.g. 
"Tests SkipBatch() by comparing the results of a reader with skipping against a 
reader that doesn't skip"


http://gerrit.cloudera.org:8080/#/c/12172/3/be/src/util/rle-test.cc
File be/src/util/rle-test.cc:

http://gerrit.cloudera.org:8080/#/c/12172/3/be/src/util/rle-test.cc@301
PS3, Line 301:       ValidateRleSkip(seq, bit_width, min_run_length, 0, 7);
> optional: these random looking numbers suggests to me that it would make se
Yeah, I like randomised tests. I don't think this code is so complex that it's 
an absolute must-have but it seems worth the effort.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib848f1bd71735fe84e8064daf700417b32589f57
Gerrit-Change-Number: 12172
Gerrit-PatchSet: 3
Gerrit-Owner: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Comment-Date: Wed, 16 Jan 2019 21:05:37 +0000
Gerrit-HasComments: Yes

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