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https://issues.apache.org/jira/browse/HIVE-2642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HIVE-2642:
------------------------------
Attachment: HIVE-2642.D735.1.patch
heyongqiang requested code review of "HIVE-2642 [jira] fix Hive-2566 and make
union optimization more aggressive".
Reviewers: JIRA
fix Hive-2566 and make union optimization more aggressive
Hive-2566 did some optimizations to union, but cause some problems. And then
got reverted. This is to get it back and fix the problems we saw, and also make
union optimization more aggressive.
TEST PLAN
EMPTY
REVISION DETAIL
https://reviews.facebook.net/D735
AFFECTED FILES
ql/src/test/results/clientpositive/merge4.q.out
ql/src/test/results/clientpositive/auto_join27.q.out
ql/src/test/results/clientpositive/union19.q.out
ql/src/test/results/clientpositive/union4.q.out
ql/src/test/results/clientpositive/union14.q.out
ql/src/test/results/clientpositive/create_view.q.out
ql/src/test/results/clientpositive/union5.q.out
ql/src/test/results/clientpositive/ql_rewrite_gbtoidx.q.out
ql/src/test/results/clientpositive/load_dyn_part14.q.out
ql/src/test/results/clientpositive/union15.q.out
ql/src/test/results/clientpositive/union24.q.out
ql/src/test/results/clientpositive/union10.q.out
ql/src/test/results/clientpositive/input25.q.out
ql/src/test/results/clientpositive/union6.q.out
ql/src/test/results/clientpositive/lineage1.q.out
ql/src/test/results/clientpositive/union25.q.out
ql/src/test/results/clientpositive/union11.q.out
ql/src/test/results/clientpositive/join35.q.out
ql/src/test/results/clientpositive/union20.q.out
ql/src/test/results/clientpositive/input26.q.out
ql/src/test/results/clientpositive/union7.q.out
ql/src/test/results/clientpositive/union17.q.out
ql/src/test/results/clientpositive/union26.q.out
ql/src/test/results/clientpositive/union12.q.out
ql/src/test/results/clientpositive/stats1.q.out
ql/src/test/results/clientpositive/union18.q.out
ql/src/test/results/clientpositive/union3.q.out
ql/src/test/results/clientpositive/union22.q.out
ql/src/test/results/clientpositive/ppd_union_view.q.out
ql/src/test/queries/clientpositive/union25.q
ql/src/test/queries/clientpositive/merge4.q
ql/src/test/queries/clientpositive/union26.q
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRProcContext.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRUnion1.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRTableScan1.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRRedSink3.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRFileSink1.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMapRedUtils.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/unionproc/UnionProcContext.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/unionproc/UnionProcFactory.java
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> fix Hive-2566 and make union optimization more aggressive
> ----------------------------------------------------------
>
> Key: HIVE-2642
> URL: https://issues.apache.org/jira/browse/HIVE-2642
> Project: Hive
> Issue Type: Improvement
> Reporter: He Yongqiang
> Assignee: He Yongqiang
> Attachments: HIVE-2642.D735.1.patch
>
>
> Hive-2566 did some optimizations to union, but cause some problems. And then
> got reverted. This is to get it back and fix the problems we saw, and also
> make union optimization more aggressive.
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