[jira] [Created] (PIG-5211) Optimize Nested Limited Sort

[Jin Sun (JIRA)]

Jin Sun created PIG-5211:
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             Summary: Optimize Nested Limited Sort
                 Key: PIG-5211
                 URL: https://issues.apache.org/jira/browse/PIG-5211
             Project: Pig
          Issue Type: Improvement
            Reporter: Jin Sun
            Assignee: Jin Sun
             Fix For: 0.17.0


Currently in FOREACH clause, if both LIMIT and ORDER BY are present, pig stores 
all elements and sort them. It should use a priority queue to be more efficient 
in space. 



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