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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2019/02/11 19:10:00 UTC
[jira] [Updated] (ARROW-3789) [Python] Enable calling object in
Table.to_pandas to "self-destruct" for improved memory use
[ 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: (was: 0.13.0)
0.14.0
> [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: 0.14.0
>
>
> 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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