Implement nullsafe equi-join
----------------------------
Key: HIVE-2827
URL: https://issues.apache.org/jira/browse/HIVE-2827
Project: Hive
Issue Type: Improvement
Components: Query Processor
Environment: ubuntu 10.04
Reporter: Navis
Assignee: Navis
Priority: Minor
was part of HIVE-2810, but separated because it affected more classes than
expected.
{noformat}
SELECT * FROM a JOIN b ON a.key <=> b.key
{noformat}
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