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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-6409) SQL: bypass H2 during index update
Date Sat, 16 Sep 2017 08:15:00 GMT
Vladimir Ozerov created IGNITE-6409:
---------------------------------------

             Summary: SQL: bypass H2 during index update
                 Key: IGNITE-6409
                 URL: https://issues.apache.org/jira/browse/IGNITE-6409
             Project: Ignite
          Issue Type: Task
          Components: persistence, sql
    Affects Versions: 2.1
            Reporter: Vladimir Ozerov


Currently the only way to update standard user index is through H2 infrastructure. See {{GridH2IndexBase#put}}
and it's usages. For every update we have to construct a kind of H2 rowm which will be passed
to index. This operation might require unnecesary memory copying and deserializations. 

We should try to find a way to bypass H2 stuff altogether and add data to underlying {{BPlusTree}}
directly.



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