ARROW-3861: [Python] ParquetDataset.read() respect specified columns and not include partition columns #7050
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…and not include partition columns
fsaintjacques
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Apr 29, 2020
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Hmm, I should have thought about triggering the dask integration tests for this ... -> https://issues.apache.org/jira/browse/ARROW-8644 |
wesm
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May 5, 2020
…de partition column for dask compatibility Given that the original change (https://issues.apache.org/jira/browse/ARROW-3861 / #7050) breaks dask's reading of partitioned datasets (it doesn't add the partition column to the list of columns to read, but expects it will still be read automatically), it doesn't seem worth it to me to fix this in the "old" ParquetDataset implementation. But we can keep the "correct" behaviour in the Datasets API - based implementation going forward. Closes #7096 from jorisvandenbossche/ARROW-8644-dask-partitioned Authored-by: Joris Van den Bossche <jorisvandenbossche@gmail.com> Signed-off-by: Wes McKinney <wesm+git@apache.org>
This was referenced Apr 30, 2020
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This is adding a test for it (using both legacy and new dataset), and also small fix for the legacy path.