v.20.5Improvement

Better DNS Exception Message Fixes #10813 and #10828

Better DNS exception message. This fixes #10813. #10828 (alexey-milovidov).
Improved DNS exception messages for better clarity and troubleshooting.

Why it matters

This feature enhances the error messages generated during DNS resolution failures, providing clearer and more informative feedback. It helps users quickly identify and diagnose DNS-related issues when ClickHouse fails to resolve hostnames.

How to use it

The improved DNS exception messages are enabled automatically with the new ClickHouse version. Users do not need to perform any additional configuration to benefit from clearer DNS error reporting.