DROP FUNCTION

引入或更新版本：v1.2.116

删除一个用户自定义函数。

语法

DROP FUNCTION [ IF EXISTS ] <function_name>

示例

DROP FUNCTION a_plus_3;

SELECT a_plus_3(2);
ERROR 1105 (HY000): Code: 2602, Text = Unknown Function a_plus_3 (while in analyze select projection).