Implement New JSON Data Type in ClickHouse

Why it matters

This feature introduces a native JSON data type to ClickHouse, allowing users to store and manipulate JSON data more efficiently and naturally within the database. It solves the problem of handling JSON data without resorting to string manipulation or external parsing, improving performance and usability.

How to use it

Users can define table columns with the JSON data type in their schema. JSON data can then be inserted directly and queried using ClickHouse's JSON functions and operators designed for this new type.