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https://reviews.apache.org/r/40897/
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Review request for hive.
Bugs: HIVE-12566
https://issues.apache.org/jira/browse/HIVE-12566
Repository: hive-git
Description
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The pushing down of where clause to join condition should not be used in outer
join. Otherwise, the initially matched rows from two joined tables might no
longer match with more join conditions, and an extra row will result in some
outer join cases. This patch is to disable the wher clasue pushdown in outer
join.
Diffs
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ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java 69bb9d7
ql/src/test/queries/clientpositive/join_cond_pushdown_unqual5.q PRE-CREATION
ql/src/test/results/clientpositive/join_cond_pushdown_unqual5.q.out
PRE-CREATION
Diff: https://reviews.apache.org/r/40897/diff/
Testing
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1. Manaual test cases passed and compared with other DBs like Oracle, MySQL
2. Precommit tests
Thanks,
Chaoyu Tang
