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Posted to dev@ignite.apache.org by "Semen Boikov (JIRA)" <ji...@apache.org> on 2017/10/23 10:40:00 UTC

[jira] [Created] (IGNITE-6702) Get rid of values deserialization in H2TreeIndex.getRowCount

Semen Boikov created IGNITE-6702:
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             Summary: Get rid of values deserialization in H2TreeIndex.getRowCount
                 Key: IGNITE-6702
                 URL: https://issues.apache.org/jira/browse/IGNITE-6702
             Project: Ignite
          Issue Type: Improvement
      Security Level: Public (Viewable by anyone)
            Reporter: Semen Boikov


It seems H2TreeIndex.getRowCount is called for 'select count(*) from x' queries, now it is implemented via BPlusTree.find(x, x) method which deserializes all values. Actually values are not needed there, need implement method on BPlusTree computing size without deserialization.



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