Navis created HIVE-4689:
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Summary: For outerjoins, joinEmitInterval might make different
result
Key: HIVE-4689
URL: https://issues.apache.org/jira/browse/HIVE-4689
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Navis
Assignee: Navis
Alias filter tag is calculated for each group and used for outer joins. But if
joinEmitInterval is smaller than the group size, pre-matured alias filter tag
would be used and might introduce different(wrong) result.
It can be observed in join_1to1.q test but I cannot imagine proper solution
which does not override intention of joinEmitInterval. Should it be disabled
for outer joins?
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