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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/23404/
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(Updated July 18, 2014, 9:09 p.m.)
Review request for hive.
Changes
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Incorporated Gunther's suggestions. Also, includes optimization for limit 0 in
subquery.
Bugs: HIVE-7385
https://issues.apache.org/jira/browse/HIVE-7385
Repository: hive-git
Description
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Optimize for empty relation scans
Diffs (updated)
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common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 34359c1
itests/qtest/testconfiguration.properties 4e6693a
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/MetadataOnlyOptimizer.java
5bad2e5
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/NullScanOptimizer.java
PRE-CREATION
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/NullScanTaskDispatcher.java
PRE-CREATION
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/PhysicalOptimizer.java
cf049b2
ql/src/java/org/apache/hadoop/hive/ql/parse/TezCompiler.java 10c8d51
ql/src/test/queries/clientpositive/optimize_nullscan.q PRE-CREATION
ql/src/test/results/clientpositive/optimize_nullscan.q.out PRE-CREATION
ql/src/test/results/clientpositive/tez/optimize_nullscan.q.out PRE-CREATION
Diff: https://reviews.apache.org/r/23404/diff/
Testing
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added new tests.
Thanks,
Ashutosh Chauhan
