Library: Apache Arrow

Observable Framework documentation: Library: Apache Arrow Source: https://observablehq.com/framework/lib-arrow

Apache Arrow “defines a language-independent columnar memory format for flat and hierarchical data, organized for efficient analytic operations.” You will probably not consume it directly, but it is used by Arquero, DuckDB, and other libraries to handle data efficiently.

To load an Arrow IPC file, use FileAttachment.

const flights = FileAttachment("flights-200k.arrow").arrow();

This returns a promise to an Arrow table.

flights