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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2019/02/06 15:14:00 UTC
[jira] [Updated] (ARROW-3401) [C++] Pluggable statistics collector
API for unconvertible CSV values
[ https://issues.apache.org/jira/browse/ARROW-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney updated ARROW-3401:
--------------------------------
Fix Version/s: (was: 0.13.0)
0.14.0
> [C++] Pluggable statistics collector API for unconvertible CSV values
> ---------------------------------------------------------------------
>
> Key: ARROW-3401
> URL: https://issues.apache.org/jira/browse/ARROW-3401
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Fix For: 0.14.0
>
>
> It would be useful to be able to collect statistics (e.g. distinct value counts) about values in a column of a CSV file that cannot be converted to a desired data type.
> When conversion fails, the converters can call into an abstract API like
> {code}
> statistics_->CannotConvert(token, size);
> {code}
> or something similar
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