Joris Van den Bossche created ARROW-6823:
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Summary: [C++][Python][R] Support metadata in the feather format?
Key: ARROW-6823
URL: https://issues.apache.org/jira/browse/ARROW-6823
Project: Apache Arrow
Issue Type: Improvement
Reporter: Joris Van den Bossche
This might need to wait / could be enabled by the feather v2 (ARROW-5510), but
thought to open a specific issue about it: do we want to support saving
metadata in feather files?
With Parquet files, you can have file-level metadata (which we currently use to
eg store the pandas_metadata). I think it would be useful to have a similar
mechanism for Feather files.
A use case where this came up is in GeoPandas where we would like to store the
Coordinate Reference System identifier of the geometry data inside the file, to
avoid needing a sidecar file just for that.
In a v2 world (using the IPC format), I suppose this could be the metadata of
the Schema.
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