[Impala-ASF-CR] IMPALA-4138: Fix AcquireState() for batches that change capacity

["Henry Robinson (Code Review)" <ge...@cloudera.org>]

Hello Tim Armstrong,

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

    http://gerrit.cloudera.org:8080/4428

to look at the new patch set (#5).

Change subject: IMPALA-4138: Fix AcquireState() for batches that change capacity
......................................................................

IMPALA-4138: Fix AcquireState() for batches that change capacity

If MarkAtCapacity() is called on a row batch, it is difficult to call
AcquireState() on that batch because tuple_ptrs_size_ is not accessible
to initialise the destination batch - this is usually calculated from
capacity(), but that value is wrong for these purposes after
MarkAtCapacity().

Add RowBatch::InitialCapacity() to return the initial capacity value of
the batch.

Add row-batch-test to add initial coverage of AcquireState() API.

Change-Id: I6ceca53c406b05cd04b7d95a4f9f2eec7bc127f5
---
M be/src/runtime/CMakeLists.txt
A be/src/runtime/row-batch-test.cc
M be/src/runtime/row-batch.cc
M be/src/runtime/row-batch.h
4 files changed, 78 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/28/4428/5
-- 
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I6ceca53c406b05cd04b7d95a4f9f2eec7bc127f5
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dh...@cloudera.com>
Gerrit-Reviewer: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <ta...@cloudera.com>