"Invalid argument for\nlogarithm" is reported. Returns NULL if X is NULL.\n\nURL: https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html\n\n','mysql> SELECT LOG2(65536);\n        -> 16\nmysql> SELECT LOG2(-100);\n        -> NULL\n','https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html');