v.25.6Bug Fix (user-visible misbehavior in an official stable release)

Add to the system

Official CH changelog text
User Defined Functions (UDF) names are not added to the system.query_log table, unlike other functions. This PR implements the addition of the UDF name to one of the two columns used_executable_user_defined_functions or used_sql_user_defined_functions if the UDF was used in the request. #81101 (Kyamran).
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