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Posted to dev@ignite.apache.org by "Semen Boikov (JIRA)" <ji...@apache.org> on 2017/02/08 14:32:41 UTC

[jira] [Created] (IGNITE-4672) Optimization: for SQL indexes implement comparison using offheap pointer

Semen Boikov created IGNITE-4672:
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             Summary: Optimization: for SQL indexes implement comparison using offheap pointer
                 Key: IGNITE-4672
                 URL: https://issues.apache.org/jira/browse/IGNITE-4672
             Project: Ignite
          Issue Type: Task
          Components: cache
            Reporter: Semen Boikov
            Assignee: Konstantin Dudkov
             Fix For: 2.0


Currently for objects comparison in sql indexes we copy full row data on heap, but when index is created on BinaryObject's field and object offheap address is known then it is possible do comparison withput on heap copy and object instantiation. Prototype is implemented in branch ignite-3477-offheap-cmp.

Note: IGNITE-4629 partially fixes issue with comparison, but it is not possible to use this optimization in all cases.



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