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Posted to jira@arrow.apache.org by "Weston Pace (Jira)" <ji...@apache.org> on 2021/05/18 21:05:00 UTC

[jira] [Created] (ARROW-12827) [C++] [Dataset] Review error pass-through in the datasets API

Weston Pace created ARROW-12827:
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             Summary: [C++] [Dataset] Review error pass-through in the datasets API
                 Key: ARROW-12827
                 URL: https://issues.apache.org/jira/browse/ARROW-12827
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Weston Pace


There is at least one (and I think there are actually several) places in the datasets API where we are bubbling up errors without attaching the necessary context.  For example, in the discussion here [https://github.com/apache/arrow/pull/10326#pullrequestreview-662095548] a call to "DatasetFactory::Create" (where the user incorrectly assigned a default file format of parquet) is returning "Parquet magic bytes not found in footer" instead of something like "Dataset creation failed. The fragment '/2019/July/myfile.csv' did not match the expected 'parquet'' format: Parquet magic bytes not found in footer"



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