Alex Behm has posted comments on this change.

Change subject: IMPALA-2736: Basic column-wise slot materialization in Parquet 
scanner.
......................................................................


Patch Set 3:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/2779/3/be/src/exec/hdfs-parquet-scanner.cc
File be/src/exec/hdfs-parquet-scanner.cc:

Line 1729: int HdfsParquetScanner::TransferScratchTuples(ScratchTupleBatch* 
scratch_batch) {
> I think the new version is just as readable, and it's way easier to reason 
Makes sense, thanks!


http://gerrit.cloudera.org:8080/#/c/2779/3/be/src/util/rle-encoding.h
File be/src/util/rle-encoding.h:

Line 250:   if (repeat_count_ == 0) {
> You mean (repeat_count_ | literal_count_) ? I'm pretty sure & is incorrect 
Mostafa said he'll give your version a run and see. We can still fix it later 
if your version slightly better.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I72a613fa805c542e39df20588fb25c57b5f139aa
Gerrit-PatchSet: 3
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Alex Behm <[email protected]>
Gerrit-Reviewer: Alex Behm <[email protected]>
Gerrit-Reviewer: Mostafa Mokhtar <[email protected]>
Gerrit-Reviewer: Skye Wanderman-Milne <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-HasComments: Yes

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