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Posted to dev@hive.apache.org by "Prasanth J (JIRA)" <ji...@apache.org> on 2014/11/15 05:52:34 UTC
[jira] [Created] (HIVE-8888) Mapjoin with LateralViewJoin generates
wrong plan in Tez
Prasanth J created HIVE-8888:
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Summary: Mapjoin with LateralViewJoin generates wrong plan in Tez
Key: HIVE-8888
URL: https://issues.apache.org/jira/browse/HIVE-8888
Project: Hive
Issue Type: Bug
Affects Versions: 0.13.1, 0.13.0, 0.14.0, 0.15.0
Reporter: Prasanth J
Assignee: Prasanth J
Queries like these
{code}
with sub1 as
(select aid, avalue from expod1 lateral view explode(av) avs as avalue ),
sub2 as
(select bid, bvalue from expod2 lateral view explode(bv) bvs as bvalue)
select sub1.aid, sub1.avalue, sub2.bvalue
from sub1,sub2
where sub1.aid=sub2.bid;
{code}
generates twice the number of rows in Tez when compared to MR.
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