v.21.6Improvement

Make round function behave consistently on non-x86_64 platforms with Banker's rounding

Official CH changelog text
Make round function to behave consistently on non-x86_64 platforms. Rounding half to nearest even (Banker's rounding) is used. #22582 (alexey-milovidov).
The round function behavior has been standardized across all platforms to use rounding half to the nearest even number (Banker's rounding).

Why it matters

This feature ensures consistent and predictable rounding results for the round function on non-x86_64 platforms, aligning with the behavior on x86_64 and improving numerical accuracy and portability of queries.

How to use it

No explicit action is required. The round function now automatically applies Banker's rounding uniformly on all supported platforms.

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