v.21.11Improvements

Correct Handling of Unknown Methods in HTTP Connection

Correct behaviour with unknown methods for HTTP connection. Solves #29050. #29057 (Filatenkov Artur).
Improved handling of unknown HTTP methods for ClickHouse HTTP connections.

Why it matters

This feature addresses improper handling of unexpected or unknown HTTP methods in ClickHouse HTTP connections, ensuring more robust and correct behavior. It enhances the stability and predictability of HTTP interface interactions by properly managing unsupported HTTP request methods.

How to use it

No explicit action is required from users. The correction is applied internally in ClickHouse's HTTP server implementation, automatically improving behavior for all HTTP connections using unknown methods.