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From "Taras Bobrovytsky (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-4883: Implement Codegen for Union
Date Wed, 22 Mar 2017 22:56:02 GMT
Taras Bobrovytsky has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/6459

Change subject: IMPALA-4883: Implement Codegen for Union
......................................................................

IMPALA-4883: Implement Codegen for Union

For each non-passthrough child of the Union node, codegen
Tuple::MarializeExprs().

Testing:
Ran test_queries.py test locally in exchaustive mode.
Ran some hand crafted performance benchmark queries locally. There is
an up to 50% performance improvement.

Change-Id: Ib4107d27582ff5416172810364a6e76d3d93c439
---
M be/src/codegen/gen_ir_descriptions.py
M be/src/codegen/impala-ir.cc
M be/src/exec/CMakeLists.txt
A be/src/exec/union-node-ir.cc
M be/src/exec/union-node.cc
M be/src/exec/union-node.h
6 files changed, 117 insertions(+), 20 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/59/6459/1
-- 
To view, visit http://gerrit.cloudera.org:8080/6459
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib4107d27582ff5416172810364a6e76d3d93c439
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Taras Bobrovytsky <tbobrovytsky@cloudera.com>

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