大纲
DROP OPERATOR [ IF EXISTS ] name
( { left_type
| NONE } , { right_type
| NONE } ) [, ...] [ CASCADE | RESTRICT ]
示例
为类型integer
移除幂操作符
a^b
:
DROP OPERATOR ^ (integer, integer);
为类型bit
移除左一元按位补操作符
~b
:
DROP OPERATOR ~ (none, bit);
为类型bigint
移除右一元阶乘操作符
x!
:
DROP OPERATOR ! (bigint, none);
在一条命令中删除多个操作符:
DROP OPERATOR ~ (none, bit), ! (bigint, none);