v.21.6Improvement

Make unhex function name case insensitive for MySQL compatibility

Official CH changelog text
Make function name unhex case insensitive for compatibility with MySQL. #23229 (alexey-milovidov).
The function name unhex is now case insensitive, enhancing compatibility with MySQL.

Why it matters

This feature solves the issue of case sensitivity in function names by allowing users to write unhex in any letter case. It improves interoperability and eases migration from MySQL by matching MySQL's case-insensitive behavior for function names.

How to use it

Users can simply call the unhex function in any case (e.g., UNHEX, UnHex, unhex) without any additional configuration.

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