v.19.13Experimental Features

New Query Processing Pipeline

New query processing pipeline. Use experimental_use_processors=1 option to enable it. Use for your own trouble. #4914 (Nikolai Kochetov)
Introduces a new query processing pipeline in ClickHouse that can be enabled using the experimental_use_processors=1 setting.

Why it matters

This feature provides an alternative query processing mechanism aimed at improving performance or experimenting with new processing strategies. It allows users to test and evaluate the new pipeline while maintaining the existing one as default, giving flexibility for troubleshooting and development.

How to use it

Enable the new query processing pipeline by setting the query option experimental_use_processors=1. This can be applied per query or configured globally for testing purposes.