v.19.8Improvements

Сlose Mysql Connections After Their Usage in External Dictionaries

Сlose MySQL connections after their usage in external dictionaries. It is related to issue #893. #5395 (Clément Rodriguez)
ClickHouse now closes MySQL connections after their usage in external dictionaries to improve resource management.

Why it matters

This feature addresses issue #893 by ensuring that MySQL connections used by external dictionaries are properly closed after use, preventing potential resource leaks and improving system stability and performance.

How to use it

No explicit action is required from users. The closing of MySQL connections in external dictionaries is handled automatically as part of the ClickHouse internal logic.