Wenzhe Zhou has uploaded a new patch set (#2). ( 
http://gerrit.cloudera.org:8080/20636 )

Change subject: IMPALA-12376: DataSourceScanNode drop some returned rows
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IMPALA-12376: DataSourceScanNode drop some returned rows

DataSourceScanNode does not handle eos properly in function
DataSourceScanNode::GetNext(). Rows, which are returned from
external data source, could be dropped if data_source_batch_size
is set with value which is greater than default value 1024.

Testing:
 - Added end-to-end test with data_source_batch_size as 2048.
   The test failed without fixing, passed with fixing.
   Also added test with data_source_batch_size as 512.
 - Passed core tests.

Change-Id: I978d0a65faa63a47ec86a0127c0bee8dfb79530b
---
M be/src/exec/data-source-scan-node.cc
M testdata/workloads/functional-query/queries/QueryTest/data-source-tables.test
M tests/custom_cluster/test_ext_data_sources.py
3 files changed, 19 insertions(+), 4 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/36/20636/2
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I978d0a65faa63a47ec86a0127c0bee8dfb79530b
Gerrit-Change-Number: 20636
Gerrit-PatchSet: 2
Gerrit-Owner: Wenzhe Zhou <[email protected]>
Gerrit-Reviewer: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Anonymous Coward <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Wenzhe Zhou <[email protected]>
Gerrit-Reviewer: Yifan Zhang <[email protected]>

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