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Posted to issues@arrow.apache.org by "Xavier Lacroze (Jira)" <ji...@apache.org> on 2019/12/10 18:56:00 UTC

[jira] [Updated] (ARROW-7367) [Python] Use np.full instead of np.array.repeat in ParquetDatasetPiece

     [ https://issues.apache.org/jira/browse/ARROW-7367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xavier Lacroze updated ARROW-7367:
----------------------------------
    Summary: [Python] Use np.full instead of np.array.repeat in ParquetDatasetPiece  (was: Use np.full instead of np.array.repeat in ParquetDatasetPiece)

> [Python] Use np.full instead of np.array.repeat in ParquetDatasetPiece
> ----------------------------------------------------------------------
>
>                 Key: ARROW-7367
>                 URL: https://issues.apache.org/jira/browse/ARROW-7367
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Xavier Lacroze
>            Priority: Trivial
>
> For small tables (len < 100) execution time is slightly degraded (~ x1.4 at len = 10), for large ones performance gain is huge (exec time ~ x0.04 at len = 100_000)



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