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Posted to dev@drill.apache.org by "Chunhui Shi (JIRA)" <ji...@apache.org> on 2016/12/02 01:51:58 UTC
[jira] [Created] (DRILL-5094) Assure Comparator to be transitive
Chunhui Shi created DRILL-5094:
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Summary: Assure Comparator to be transitive
Key: DRILL-5094
URL: https://issues.apache.org/jira/browse/DRILL-5094
Project: Apache Drill
Issue Type: Bug
Reporter: Chunhui Shi
Assignee: Chunhui Shi
Priority: Critical
In AssignmentCreator.java, one Comparator could break transitive attribute required for a Comparator implementation and the result is not correct.
E.g. for:
long IntPlusOne = 0x80000000L;
[0]=2 * IntPlusOne + 5, [1] = 2* IntPlusOne + 8, [2] = 4 * IntPlusOne + 4,
the compare results will be like:
compare([0],[1]) = -3,
compare([1],[2]) = 4,
compare([0],[2]) = 1
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