Add support for the arrow.json extension type

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
68/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
java
Domain
data-engineering

Research direction

Start by locating Arrow Java's existing UUID extension support and compare its implementation with the canonical arrow.json extension type. Add coverage for Utf8, LargeUtf8, and Utf8View storage, then verify IPC round-trips and interoperability with PyArrow; done means all three storage types are supported and the tests pass.

Written by the indexing model from the issue text.

Description

Type: enhancement
Describe the enhancement requested

I'd like to add the canonical arrow.json extension type to Arrow Java, similar to the existing UUID support.

This would support Utf8, LargeUtf8, and Utf8View storage, with tests for IPC round-trips and interoperability with PyArrow.

Dominant language
Java
Stars
95
Forks
154
Avg merge
2d 10h
Merged PRs (30d)
11

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