[kudu-CR] WIP: KUDU-1002. Add support for UPSERT

["Todd Lipcon (Code Review)" <ge...@cloudera.org>]

Hello Kudu Jenkins,

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

    http://gerrit.cloudera.org:8080/3101

to look at the new patch set (#2).

Change subject: WIP: KUDU-1002. Add support for UPSERT
......................................................................

WIP: KUDU-1002. Add support for UPSERT

This adds support for an Upsert operation to the server side and
to the C++ client.

WIP:
- need Java client support,
- a bit more test coverage (unit test on row op decoding)
- add to a few more of the randomized tests which include recovery
- add docs
- perhaps some metrics and/or a way to read back how many rows were
  replaced vs inserted on the client side (maybe do as a follow-up)

Change-Id: Ic83d40bb7d577509d64aa7986f9dcd0280400c09
---
M src/kudu/client/client-test.cc
M src/kudu/client/client.cc
M src/kudu/client/client.h
M src/kudu/client/write_op.cc
M src/kudu/client/write_op.h
M src/kudu/common/row_operations-test.cc
M src/kudu/common/row_operations.cc
M src/kudu/common/row_operations.h
M src/kudu/common/wire_protocol.proto
M src/kudu/tablet/local_tablet_writer.h
M src/kudu/tablet/tablet-test-base.h
M src/kudu/tablet/tablet-test.cc
M src/kudu/tablet/tablet.cc
M src/kudu/tablet/tablet.h
M src/kudu/tablet/tablet_random_access-test.cc
M src/kudu/tablet/transactions/write_transaction.cc
16 files changed, 310 insertions(+), 18 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/01/3101/2
-- 
To view, visit http://gerrit.cloudera.org:8080/3101
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ic83d40bb7d577509d64aa7986f9dcd0280400c09
Gerrit-PatchSet: 2
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Dan Burkert <da...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mp...@apache.org>