Hello Tidy Bot, Mike Percy, Alexey Serbin, Kudu Jenkins, Andrew Wong,

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/10983

to look at the new patch set (#14).

Change subject: KUDU-1291. Efficiently support predicates on non-prefix key 
components
......................................................................

KUDU-1291. Efficiently support predicates on non-prefix key components

This patch implements index skip scan approach in the case when there
exists an equality predicate on any of the non-first
primary key columns.

This feature uses the following approach:
1. Seek at the first unique prefix key in the ad-hoc index tree.
2. Seek to the relevant entry corresponding to the unique prefix key
   found in 1. and the predicate value on the suffix key column.
3. To handle the case where multiple entries exist with respect to
   a unique prefix key, store the upper bound index of these entries.
4. Repeat steps 1-3, till all the unique prefix keys are scanned.

Change-Id: I230cd5a288e28ace796b352a603e0d1bcc1e4e0f
---
M src/kudu/cfile/cfile-test.cc
M src/kudu/cfile/cfile_reader.cc
M src/kudu/cfile/cfile_reader.h
M src/kudu/common/encoded_key.cc
M src/kudu/common/encoded_key.h
M src/kudu/common/partial_row.h
M src/kudu/tablet/CMakeLists.txt
M src/kudu/tablet/cfile_set.cc
M src/kudu/tablet/cfile_set.h
A src/kudu/tablet/index_skipscan-test.cc
10 files changed, 1,023 insertions(+), 28 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/83/10983/14
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I230cd5a288e28ace796b352a603e0d1bcc1e4e0f
Gerrit-Change-Number: 10983
Gerrit-PatchSet: 14
Gerrit-Owner: Anupama Gupta <anupama.gu...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: Anupama Gupta <anupama.gu...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mpe...@apache.org>
Gerrit-Reviewer: Tidy Bot

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