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Posted to issues@arrow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/08/21 09:54:00 UTC

[jira] [Updated] (ARROW-6296) [Java] Cleanup JDBC interfaces and eliminate one memcopy for binary/varchar fields

     [ https://issues.apache.org/jira/browse/ARROW-6296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-6296:
----------------------------------
    Labels: pull-request-available  (was: )

> [Java] Cleanup JDBC interfaces and eliminate one memcopy for binary/varchar fields
> ----------------------------------------------------------------------------------
>
>                 Key: ARROW-6296
>                 URL: https://issues.apache.org/jira/browse/ARROW-6296
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Java
>            Reporter: Micah Kornfield
>            Assignee: Ji Liu
>            Priority: Major
>              Labels: pull-request-available
>
> * If we use direct setting of fields, we can avoid the extra temporary buffer and memcpy by setting bytes directly.
>  * We should overwrite existing vectors in consumers before returning results, to avoid the possibility of closing vectors in use (or alternatively make sure we retain the underlying buffers).
>  * Try to eliminate some of the state in load() by moving initialization to the constructor.



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