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Posted to issues@arrow.apache.org by "Xavier Lacroze (Jira)" <ji...@apache.org> on 2019/12/10 18:55:00 UTC

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

Xavier Lacroze created ARROW-7367:
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             Summary: 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


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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