Vladimir Ozerov created IGNITE-6945:

             Summary: SQL: optionally do not copy offheap rows for local 
                 Key: IGNITE-6945
                 URL: https://issues.apache.org/jira/browse/IGNITE-6945
             Project: Ignite
          Issue Type: Task
      Security Level: Public (Viewable by anyone)
          Components: sql
            Reporter: Vladimir Ozerov
            Assignee: Taras Ledkov
             Fix For: 2.4

Currently when iterating over rows we eagerly materialize them [1]. If key or 
value are large enough, we could loose a lot of time on offheap-heap copying. 
To partially mitigate this, we can do the following:
1) Add new flag {{SqlQuery.localNoCopy}} which is applicable only for local 
2) When enabled we will not copy final {{_KEY}} and {{_VAL}} columns to heap. 
but rather wrap them into {{BinaryOffheapObjectImpl}}
3) These rows must be released when query iterator switches to the next row.

[1] {{H2RowFactory.getRow}}

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