Join in local mode matches null keys
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Key: PIG-963
URL: https://issues.apache.org/jira/browse/PIG-963
Project: Pig
Issue Type: Bug
Affects Versions: 0.4.0
Reporter: Pradeep Kamath
Assignee: Pradeep Kamath
Semantics of join and cogroup dictate that null values for the keys from
different inputs are NOT supposed to match. This is true in map reduce mode but
local mode incorrectly matches these records.
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