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https://issues.apache.org/jira/browse/HIVE-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13109753#comment-13109753
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[email protected] commented on HIVE-2206:
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https://reviews.apache.org/r/2001/
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Review request for hive.
Summary
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This optimizer exploits intra-query correlations and merges multiple correlated
MapReduce jobs into one jobs.
This addresses bug HIVE-2206.
https://issues.apache.org/jira/browse/HIVE-2206
Diffs
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trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 1173271
trunk/ql/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/ql/plan/api/OperatorType.java
1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/CorrelationCompositeOperator.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/CorrelationDispatchOperator.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/CorrelationFakeReduceSinkOperator.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/CorrelationManualForwardOperator.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/CorrelationReduceSinkOperator.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExecReducer.java 1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/FunctionRegistry.java
1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/Operator.java 1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/OperatorFactory.java 1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/CorrelationGenMRRedSink1.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/CorrelationOptimizer.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/CorrelationOptimizerUtils.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMapRedUtils.java
1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/Optimizer.java 1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/ParseContext.java 1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/CorrelationCompositeDesc.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/CorrelationDispatchDesc.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/CorrelationFakeReduceSinkDesc.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/CorrelationManualForwardDesc.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/CorrelationReduceSinkDesc.java
PRE-CREATION
trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/MapredWork.java 1173271
trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCountDistinct.java
PRE-CREATION
trunk/ql/src/test/org/apache/hadoop/hive/ql/exec/TestExecDriver.java 1173271
trunk/ql/src/test/results/clientpositive/show_functions.q.out 1173271
trunk/ql/src/test/results/compiler/plan/groupby1.q.xml 1173271
trunk/ql/src/test/results/compiler/plan/groupby2.q.xml 1173271
trunk/ql/src/test/results/compiler/plan/groupby3.q.xml 1173271
trunk/ql/src/test/results/compiler/plan/groupby5.q.xml 1173271
Diff: https://reviews.apache.org/r/2001/diff
Testing
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Ran all unit tests
Thanks,
Yin
> add a new optimizer for query correlation discovery and optimization
> --------------------------------------------------------------------
>
> Key: HIVE-2206
> URL: https://issues.apache.org/jira/browse/HIVE-2206
> Project: Hive
> Issue Type: New Feature
> Reporter: He Yongqiang
> Assignee: Yin Huai
> Attachments: HIVE-2206.1.patch.txt, HIVE-2206.2.patch.txt,
> HIVE-2206.3.patch.txt, HIVE-2206.4.patch.txt, HIVE-2206.5.patch.txt, Queries,
> YSmartPatchForHive.patch, testQueries.q
>
>
> reference:
> http://www.cse.ohio-state.edu/hpcs/WWW/HTML/publications/papers/TR-11-7.pdf
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