Automatically Infer Nullable Column Types from Apache Arrow Schema

Why it matters

This feature enables ClickHouse to automatically detect and apply Nullable column types based on the schema provided by Apache Arrow. It simplifies data imports by preserving nullability information without requiring manual column type definitions, improving accuracy and convenience when working with Apache Arrow data sources.

How to use it

When importing data from Apache Arrow formats, ClickHouse will now automatically infer which columns should be treated as Nullable. No additional settings are needed; just use the standard import commands or functions that support Apache Arrow inputs.