> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/15/reference/sql-commands/drop-operator.md).

# DROP OPERATOR

## DROP OPERATOR

DROP OPERATOR — remove an operator

### Synopsis

```

DROP OPERATOR [ IF EXISTS ] name ( { left_type | NONE } , right_type ) [, ...] [ CASCADE | RESTRICT ]
```

### Description

`DROP OPERATOR` drops an existing operator from the database system. To execute this command you must be the owner of the operator.

### Parameters

`IF EXISTS`

Do not throw an error if the operator does not exist. A notice is issued in this case.

*`name`*

The name (optionally schema-qualified) of an existing operator.

*`left_type`*

The data type of the operator's left operand; write `NONE` if the operator has no left operand.

*`right_type`*

The data type of the operator's right operand.

`CASCADE`

Automatically drop objects that depend on the operator (such as views using it), and in turn all objects that depend on those objects (see [Section 5.14](/15/the-sql-language/ddl/dependency-tracking.md)).

`RESTRICT`

Refuse to drop the operator if any objects depend on it. This is the default.

### Examples

Remove the power operator `a^b` for type `integer`:

```

DROP OPERATOR ^ (integer, integer);
```

Remove the bitwise-complement prefix operator `~b` for type `bit`:

```

DROP OPERATOR ~ (none, bit);
```

Remove multiple operators in one command:

```

DROP OPERATOR ~ (none, bit), ^ (integer, integer);
```

### Compatibility

There is no `DROP OPERATOR` statement in the SQL standard.

### See Also

[CREATE OPERATOR](/15/reference/sql-commands/create-operator.md), [ALTER OPERATOR](/15/reference/sql-commands/alter-operator.md)

***

原文：[PostgreSQL 15.19 Documentation](/15/reference/sql-commands/drop-operator.md)（英文原文，待翻譯）


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