Gopal V created TEZ-1113:
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Summary: Collapse equal keys in PipelinedSorter
Key: TEZ-1113
URL: https://issues.apache.org/jira/browse/TEZ-1113
Project: Apache Tez
Issue Type: Improvement
Reporter: Gopal V
Assignee: Gopal V
Key comparisons which result in equality are ignored in PipelinedSorter now.
Since the basic characteristic of this sorter is that offsets only grow in one
direction, we can avoid a large number of comparisons by collapsing keys into
one another when they are equal.
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