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https://reviews.apache.org/r/72526/
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Review request for hive and Jesús Camacho Rodríguez.


Bugs: HIVE-23493
    https://issues.apache.org/jira/browse/HIVE-23493


Repository: hive-git


Description
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Rewrite plan to join back tables with many projected columns joined multiple 
times


Diffs
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  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java f5ad3a882b 
  
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveCardinalityPreservingJoinOptimization.java
 PRE-CREATION 
  
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveRelFieldTrimmer.java
 19ce3ea223 
  ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java 32ad4c1539 
  ql/src/test/queries/clientpositive/cardinality_preserving_join_opt.q 
PRE-CREATION 
  ql/src/test/queries/clientpositive/cardinality_preserving_join_opt_q11.q 
PRE-CREATION 
  ql/src/test/queries/clientpositive/cardinality_preserving_join_opt_q4.q 
PRE-CREATION 
  ql/src/test/queries/clientpositive/cardinality_preserving_join_opt_q74.q 
PRE-CREATION 
  ql/src/test/results/clientpositive/llap/cardinality_preserving_join_opt.q.out 
PRE-CREATION 
  
ql/src/test/results/clientpositive/llap/cardinality_preserving_join_opt_q11.q.out
 PRE-CREATION 
  
ql/src/test/results/clientpositive/llap/cardinality_preserving_join_opt_q4.q.out
 PRE-CREATION 
  
ql/src/test/results/clientpositive/llap/cardinality_preserving_join_opt_q74.q.out
 PRE-CREATION 


Diff: https://reviews.apache.org/r/72526/diff/1/


Testing
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mvn test -Dtest.output.overwrite -DskipSparkTests 
-Dtest=TestMiniLlapLocalCliDriver 
-Dqfile=cardinality_preserving_join_opt.q,cardinality_preserving_join_opt_q4.q,cardinality_preserving_join_opt_q11.q,cardinality_preserving_join_opt_q74.q
 -pl itests/qtest -Pitests


Thanks,

Krisztian Kasa

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