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https://issues.apache.org/jira/browse/ARROW-13028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17489671#comment-17489671
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Antoine Pitrou commented on ARROW-13028:
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Well, it's probably worth keeping open for now. But the solution should revolve
around a more future-proof setting than the proposed boolean setting.
> [C++] CSV add convert option to attempt 32bit number inferences
> ---------------------------------------------------------------
>
> Key: ARROW-13028
> URL: https://issues.apache.org/jira/browse/ARROW-13028
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Nate Clark
> Assignee: Nate Clark
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> When types are being inferred by CSV the numbers are always 64 bit. For large
> data sets it could be better to use 32 bit types to save over all memory. To
> do this it would be useful to add an option to ConvertOptions to try 32 bit
> numbers before 64 bit. By default this option would be disabled.
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