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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/2355/
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Review request for hive and Yongqiang He.
Summary
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We found partition pruning would incorrectly prune some partitions the MR job
needs by running a sql like below
select user_id
from
(
select
cast(key as int) as user_id,
case when (value like 'aaa%' or value like 'vvv%')
then 1
else 0
end as tag_student
from src3
) sub
where sub.tag_student > 0;
The patch should fix this problem.
Diffs
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http://svn.apache.org/repos/asf/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/ppr/ExprProcFactory.java
1180775
Diff: https://reviews.apache.org/r/2355/diff
Testing
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Thanks,
bin
