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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2019/02/06 04:36:00 UTC

[jira] [Updated] (ARROW-2294) [Java] Fix splitAndTransfer for variable width vector

     [ https://issues.apache.org/jira/browse/ARROW-2294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-2294:
--------------------------------
    Summary: [Java] Fix splitAndTransfer for variable width vector  (was: Fix splitAndTransfer for variable width vector)

> [Java] Fix splitAndTransfer for variable width vector
> -----------------------------------------------------
>
>                 Key: ARROW-2294
>                 URL: https://issues.apache.org/jira/browse/ARROW-2294
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Java
>            Reporter: Siddharth Teotia
>            Assignee: Siddharth Teotia
>            Priority: Major
>
> When we splitAndTransfer a vector, the value count to set for the target vector should be equal to split length and not the value count of source vector. 
> We have seen cases in operator slike FLATTEN and under low memory conditions, we end up allocating a lot more memory for the target vector because of using a large value in setValueCount after split and transfer is done.



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