v.25.12New Feature

New input output format Buffers

Implement new input output format Buffers. This format is similar to Native; however, unlike Native, it does not store column names, column types, or any extra metadata. Closes #84017. #91156 (Nihal Z. Miaji).
Introduces a new input/output format called Buffers in ClickHouse, which is similar to the Native format but omits column names, column types, and any extra metadata.

Why it matters

This feature addresses the need for a more lightweight binary format by removing redundant metadata such as column names and types. It is useful for scenarios where minimal overhead is important and the schema is already known, improving efficiency in data serialization and transfer.

How to use it

To use the Buffers format, specify it in your input/output operations by setting the FORMAT Buffers option in your SQL queries or client applications, similarly to how you would use the Native format.