[jira] [Updated] (ARROW-3789) [Python] Enable calling object in Table.to_pandas to "self-destruct" for improved memory use

["Wes McKinney (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-3789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-3789:
--------------------------------
    Fix Version/s: 1.0.0

> [Python] Enable calling object in Table.to_pandas to "self-destruct" for improved memory use
> --------------------------------------------------------------------------------------------
>
>                 Key: ARROW-3789
>                 URL: https://issues.apache.org/jira/browse/ARROW-3789
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 1.0.0
>
>
> One issue with using {{Table.to_pandas}} is that it results in a memory doubling (at least, more if there are a lot of Python objects created). It would be useful if there was an option to destroy the {{arrow::Column}} references once they've been transferred into the target data frame. This would render the {{pyarrow.Table}} object useless afterward



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