Hello Impala Public Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/19030
to look at the new patch set (#3).
Change subject: IMPALA-10891: Avoid hash exchanges in more situations
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IMPALA-10891: Avoid hash exchanges in more situations
If the partition keys of parent fragment and child fragment have
an intersecion and the intersection keys have a high cardinality,
We can think parent fragment and child fragment have compatible
partitions.
The high cardinality factor can be set by query option.
Testing:
- Added planner tests in 'PlannerTest'
Change-Id: Ie627d07b729f1f584f589cd0251dfe2bb64a417f
---
M be/src/service/query-options.cc
M be/src/service/query-options.h
M common/thrift/ImpalaService.thrift
M common/thrift/Query.thrift
M fe/src/main/java/org/apache/impala/analysis/AggregateInfo.java
M fe/src/main/java/org/apache/impala/analysis/Expr.java
M fe/src/main/java/org/apache/impala/analysis/SlotRef.java
M fe/src/main/java/org/apache/impala/planner/DataPartition.java
M fe/src/test/java/org/apache/impala/planner/PlannerTest.java
A
testdata/workloads/functional-planner/queries/PlannerTest/optimize_shuffle.test
10 files changed, 132 insertions(+), 3 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/30/19030/3
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ie627d07b729f1f584f589cd0251dfe2bb64a417f
Gerrit-Change-Number: 19030
Gerrit-PatchSet: 3
Gerrit-Owner: Xiaoqing Gao <gaoxq...@gmail.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
