Daniel Dai created PIG-4072:
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Summary: secondary sort optimizer to support multiple predecessors
Key: PIG-4072
URL: https://issues.apache.org/jira/browse/PIG-4072
Project: Pig
Issue Type: Improvement
Components: impl
Reporter: Daniel Dai
Fix For: 0.14.0
As described in PIG-4064, SecondaryOptimizer does not handle two predecessors.
When we process the first predecessor, we remove the foreach inner operators
from the reduce side, and the second predecessor cannot see them.
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