Adar Dembo has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/10929 )

Change subject: memrowset: support iteration with include_deleted_rows
......................................................................

memrowset: support iteration with include_deleted_rows

This is another piece in the incremental backup puzzle. The idea is that
when taking an incremental backup, the scan will include rows that have been
deleted. The backup will figure out which rows were deleted by including a
special "is deleted" virtual column in the projection.

This commit introduces a new iterator option that can be used to include
deleted rows, and uses it in the MemRowSet.

Change-Id: Ie018043518b437ecc719cf9f87b2c5eea560c9a1
Reviewed-on: http://gerrit.cloudera.org:8080/10929
Reviewed-by: Todd Lipcon <[email protected]>
Tested-by: Kudu Jenkins
Reviewed-by: Mike Percy <[email protected]>
---
M src/kudu/tablet/memrowset-test.cc
M src/kudu/tablet/memrowset.cc
M src/kudu/tablet/rowset.cc
M src/kudu/tablet/rowset.h
4 files changed, 80 insertions(+), 16 deletions(-)

Approvals:
  Todd Lipcon: Looks good to me, but someone else must approve
  Kudu Jenkins: Verified
  Mike Percy: Looks good to me, approved

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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: Ie018043518b437ecc719cf9f87b2c5eea560c9a1
Gerrit-Change-Number: 10929
Gerrit-PatchSet: 7
Gerrit-Owner: Adar Dembo <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Grant Henke <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <[email protected]>
Gerrit-Reviewer: Todd Lipcon <[email protected]>

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