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https://reviews.apache.org/r/18264/
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Review request for Tajo.
Bugs: TAJO-609
https://issues.apache.org/jira/browse/TAJO-609
Repository: tajo
Description
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Currently, PlannerUtil::getRelationLineage ignores PartitionedTableScanNode. As
a result, PlannerUtil::getRelationLineage can return empty relations. It
results in wrong estimation of relation size. Finally, in the case where a
broadcast join between a partitioned table and a small table, this problem
causes the bug to choose the larger table instead of smaller one to be loaded
on hash table.
This patch fixes this bug, refactors inner-join related methods, and added more
comments on them.
Diffs
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tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/planner/PhysicalPlannerImpl.java
5583efdaf2f809d2cc47af13962d0a7c284924cc
tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/planner/PlannerUtil.java
624518b534a6214e2a2908e21ea977254b23368c
tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/LocalTajoTestingUtility.java
ae59d11f8f43b67c03948aa5d0f9f5c63e971982
tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/planner/physical/TestHashJoinExec.java
48cd2655a5d09aedbed92ff6c15fa1cc07246d08
Diff: https://reviews.apache.org/r/18264/diff/
Testing
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Thanks,
Hyunsik Choi
