Ximo Guanter created SPARK-26160:
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Summary: Make assertNotBucketed call in DataFrameWriter::save
optional
Key: SPARK-26160
URL: https://issues.apache.org/jira/browse/SPARK-26160
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.4.0
Reporter: Ximo Guanter
Currently, the `.save` method in DataFrameWriter will fail if the dataframe is
bucketed and/or sorted. This makes sense, since there is no way of storing
metadata in the current file-based data sources to know whether a file was
bucketed or not.
I have a use case where I would like to implement a new, file-based data source
which could keep track of that kind of metadata, so I would like to be able to
`.save` bucketed dataframes.
Would a patch to extend the datasource api with an indicator of whether that
source is able to serialize bucketed dataframes be a welcome addition? I'm
happy to work on it.
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