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Version: Tenzir v4.9


Reads and writes the Feather file format.




The feather format provides both a parser and a printer for Feather files.

Feather is a thin layer on top of Arrow IPC, making it conducive for memory mapping and zero-copy usage scenarios.

MMAP Parsing

When using the parser with the file connector, we recommend passing the --mmap option to file to give the parser full control over the reads, which leads to better performance and memory usage.

Tenzir writes Feather files with Zstd compression enables. Our blog has a post with an in-depth analysis about the effect of Zstd compression.


Read a Feather file via the from operator:

from file --mmap /tmp/data.feather read feather