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https://issues.apache.org/jira/browse/ARROW-12681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques updated ARROW-12681:
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Description:
I would like to be able to read only a subset of columns from a given IPC file.
To do this, we need to expose the EXPERIMENTAL (is it still?)
IpcReaderOptions.include_fields option. The reason is that the file is on a
remote storage and can't mmap thus I want to minimize network transfer.
I do not know the best way to "pythonize" IpcReaderOptions and would need help
on this.
was:
I would like to be able to read only a subset of columns from a given IPC file.
To do this, we need to expose the EXPERIMENTAL (is it still?)
IpcReaderOptions.include_fields option.
I do not know the best way to "pythonize" IpcReaderOptions and would need help
on this.
> [Python] Expose IpcReadOptions to ipc facility
> ----------------------------------------------
>
> Key: ARROW-12681
> URL: https://issues.apache.org/jira/browse/ARROW-12681
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Francois Saint-Jacques
> Priority: Minor
>
> I would like to be able to read only a subset of columns from a given IPC
> file. To do this, we need to expose the EXPERIMENTAL (is it still?)
> IpcReaderOptions.include_fields option. The reason is that the file is on a
> remote storage and can't mmap thus I want to minimize network transfer.
> I do not know the best way to "pythonize" IpcReaderOptions and would need
> help on this.
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