[jira] [Created] (FLINK-1778) Improve normalized keys in composite key case

[Shang Yuanchun (Jira)]

Stephan Ewen created FLINK-1778:
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             Summary: Improve normalized keys in composite key case
                 Key: FLINK-1778
                 URL: https://issues.apache.org/jira/browse/FLINK-1778
             Project: Flink
          Issue Type: Improvement
          Components: Local Runtime
    Affects Versions: 0.9
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 0.9


Currently, if we have a key (String, long), the String will take up the entire normalized key space, without being fully discerning anyways. Limiting the key prefix in size and giving space to the second key field should in most cases improve the comparison efficiency.



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