v.22.9Improvement

Improve Arrow Format Dictionaries

Improve and fix dictionaries in Arrow format. #40173 (Kruglov Pavel).
Improved and fixed support for dictionaries in Arrow format in ClickHouse.

Why it matters

This feature enhances the reliability and functionality of dictionaries using the Arrow format by fixing existing issues and improving performance. It ensures better integration and usability of Arrow-formatted dictionaries for users, enabling smoother data handling and querying.

How to use it

Users can utilize these fixes and improvements by using dictionaries in Arrow format as usual. No additional configuration is required beyond using the updated version of ClickHouse with this feature included.