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3.5.6 Feather

The FeatherTableBuilder class can read files in Feather format. Feather is a column-oriented binary disk-based format based on Apache Arrow and supported by (at least) Python, R and Julia. Some description of it is available at https://github.com/wesm/feather and https://blog.rstudio.com/2016/03/29/feather/. It can be used for large datasets, but it does not support array-valued columns. It can be a useful format to use for exchanging data with R, for which FITS I/O is reported to be slow.

At present CATEGORY type columns are not supported, and metadata associated with TIME, DATE and TIMESTAMP columns is not retrieved.

The feather reader can only read files that are on disk, not streamed.


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STIL - Starlink Tables Infrastructure Library
Starlink User Note252
STIL web page: http://www.starlink.ac.uk/stil/
Author email: m.b.taylor@bristol.ac.uk