[poorman]

Not only in between processes, but also in between languages in a single process. In this POC I spun up a Python interpreter in a Go process and pass the Arrow data buffer between processes in constant time. https://github.com/nickpoorman/go-py-arrow-bridge

[cdash]

How is this any better than something like flatbuffers though?

[mrfox321]

For one, Arrow is columnar.

The idea of zero-copy serialization is shared between Arrow and FlatBuffers.

[asperous]

This is explained in the FAQS for Arrow, saying they use flatbuffers internally. Arrow supports more complex data types

[tomnipotent]

> saying they use flatbuffers internally

Only for IPC support - Arrow data format does not use flatbuffers.