Weston Pace created ARROW-12827: ----------------------------------- 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" -- This message was sent by Atlassian Jira (v8.3.4#803005)