v.21.7Improvement

Fix IPv6 Address Resolution in ClickHouse

Official CH changelog text
Fix IPv6 addresses resolving (i.e. fixes select * from remote('[::1]', system.one)). #24319 (Azat Khuzhin).
Fixes the resolution of IPv6 addresses in remote queries, enabling proper use of addresses like [::1] in functions such as remote.

Why it matters

Address the issue where IPv6 addresses were not properly resolved in remote queries, which prevented users from querying remote tables or systems via IPv6. This improves network compatibility and usability for environments relying on IPv6.

How to use it

Users can now use IPv6 addresses directly in remote query functions. For example, run queries like:

SELECT * FROM remote('[::1]', system.one)

without encountering resolution errors.

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